Dumbledore is quite sure the Defense Against the Dark Arts job is cursed, at least by the time of HBP. Sooo… why didn’t he figure out how to break the curse?

Being able to retain a skilled teacher would be pretty compelling. Is Dumbledore really so inferior to Voldemort in regard to curses that he couldn’t remove it? Or, if not, couldn’t he have created a new position with a new name, and new classes to go along with it? Call it Protection From the Dark Arts or Magical Defense or something.

Why are there socioeconomic classes on a society that can literally create or at least multiply any resources at will?

The spell system is wack, which opens up all sorts of plot holes. Want Harry’s invisibility cloak? Accio invisibility cloak! Boom, Harry’s visible and you’ve got his cloak. I doubt that Rowling ever played D&D.

There’s no fucking way that a kid raised from infancy like Harry was, in a abusive hateful household that treated him like dirt, would have enough strength of character to pull shit like the “Give it here, Malfoy” scene after having been out of the Dursley household for less than a couple weeks. Think about how the Dursleys would have reacted every time young Harry tried to stand up for himself. It would have been nonstop physical and mental abuse, all aimed at making him more subservient. It would take a miracle for a kid like that to be even vaguely functional as a person, and he certainly wouldn’t have the ability to stand up for himself, let alone others.

I always cringe with the 7th book, where the trio is hiding and searching for horkruxes, and for some weird reason they don’t have enough food and are constantly hungry. From the reading perspective I understand, that the hunger is a device to generate conflict and make their time hard to endure, but it always baffles me.

• It is mentioned, that Hermione pulled out all her muggle savings, so why didn’t she think about going to a supermarket and buying all the conserved food (cans and such) she can before they got on the run? She even mentions, that food can be multiplicated, just not created out of nothing.
• When they are hiding they sometimes get to a store or supermarket. But that only brings food for like a few days max. Why not more?
• And when there where too many dementors in an area to get more food, why not going really far away. We know Hermione was at least one time in France with her parents. Why not going there? Probably the war-like situation was not spread over the complete world that seriously. At least we are not hearing any of that in the books (JKR probably didn’t even thing much about international things when writing this)

I don’t know if it’s a plot hole per se, but when do they learn maths and science? If they’ at Hogwarts for 7 years, and they only learn magic, when exactly do they learn the usual subjects? Are they just stupid because they don’t learn them?

Not really a plot hole, but a missed opportunity. Dumbledore’s Phoenix could have shown up to help Snape - putting Harry in a mindfuck state as he would know both that Snape killed him and that Snape was loyal to him.

The plot has already being discussed at length. I want to talk about quidditch.

Quick recap, in quidditch, scoring goals scores 10 or 20 points, catching the snitch scores 150 points, and ends the game. This effectively means that the only way a team can catch the snitch and lose is if they are over 150 points behind.

As a result of this, logically the seaker should not attempt to catch the snitch if the score is this unfavourable, meaning the game is always decided by the seaker, and nothing anyone else is doing remotely matters. Remember also we see the audience is rarely able to see what the seeker is doing from the stands.

Now you may say “what about the world cup in book 4, Krumm catches the snitch and still loses”. This can only be attributed to Krumm got mad at his team, or maybe bored, otherwise he should just wait and see if his team can score a goal or two. If the other team’s seaker catches the snitch you lose anyway, so why even try until it’s going to win you the game? Maybe he was showing off to Hermione.

We also know for certain that this happens very rarely, as the odds given to the twins by Ludo Bagman are very high, leading to a big payout. Therefore quidditch is entirely decided by something that happens well out of sight of the audience, and would be terrible to watch or play.

As an aside, the rules around catching the snitch leading to a draw are never mentioned, but I assume they have some penalty shootout system

Like a hundred or so teenagers of whom a large part went to some regular school and had regular non-wizard friends would suddenly either completely cut off contact as if devoured by a cult or dead or the kids are assumed to just successfully lie about not being fucking magic.

It’s utterly ridiculous. Imagine if it was hidden from the Dursley’s somehow and that Harry spent summers there bullied by Dudley. That he would never snap and tell or do magic?

Or that people like Dudley would keep their mouth shut for their entire lives?

Nah.

Aside from the very much sung “why didn’t they use the time turner then”, there’s a bunch of “Why didn’t they stop Voldemort then” that could be inserted at various points of the story; when you consider that:

1- Albus had a spy within the death eaters in the person if Severus Snape.

2- In “the Order of the Phoenix”, while Voldy could take Albus 1 on 1, he retreated when more people arrived, implying they could gang up on him.

3- Sure they couldn’t kill him without the horcruxes, but another important plot point is that they have a magical prison, staffed with creatures that absorb your life force. Sure, Azkaban seems like a joke considering the number of prisoners breaking out of it… But in the case of Sirius he could escape transformed as a dog because they didn’t know he was an animagus and hadn’t taken the relevant measures, and the rest were broken out from outside. Certainly, they could hold Voldy with the right measures. Albus was monitoring Voldemort and the death eaters activity the whole time. In the first book/movie, he even had him within his school, unknowingly sure, but he knew Voldemort was likely to try and get his hands on the philosopher’s stone, and was just like “don’t worry, it’s well protected”, not even trying to set up an ambush, or to pursue Voldemort once he knows he was there.

Well, we’ll have to ignore the gaping plot-induced stupidity on display by practically everyone throughout the entire story, because without it the books would have been quite short. So setting that aside, because I’m sure it’s been trampled to death already.

The complete unwillingness for the wizarding world to utilize even basic Muggle technologies and knowledge is absolutely baffling. It’s insinuated that they don’t need Muggle things because they can substitute them with magic which is “equivalent.” This is self-evidently hokum.

These idiots still write with quills, read by candlelight, don’t use the Internet, and despite having literal magic at their disposal their communication systems (such as they are) are laughably inferior to common Muggle ones even in the context of the time period in which the story is supposedly set. Come on. Owls?

Magic users demonstrate basically no understanding of science and are all demonstrably the worse off for it, still having a nearly medieval understanding of how the world works, and rely on magic as a crutch to weakly compensate. This even when it’s obvious to an outside observer that a basic piece of mundane knowledge or technology would be not only easier and significantly less dangerous than whatever the fuck their homegrown solution is, but also more effective. This is treated in supplementary works by Rowling as if it’s a point of pride by wizards and witches who deliberately eschew anything of Muggle origin – even if this means going to great lengths to shoot themselves in the foot simply to maintain that attitude of aloofness, which only serves to underscore the sheer stupidity apparently heavily ingrained into magical culture.

The fact that neither Harry nor none of the other Muggleborn kids are puzzled by this, nor why they apparently deliberately fail to bring so much as a common yellow #2 pencil with them from the mundane world out of sheer habit makes zero sense. (And yes, this is touched upon in the already recommended Methods of Rationality.)

Magical consumer goods are also seriously customer hostile. Who the fuck thought even half of those things were a desirable marketable product? Is there an evil wizard version of Willy Wonka lurking around someplace? Think of all the pocket change a Muggleborn lad could make by bringing a case of jelly beans with him to school to sell to his classmates where you don’t have a one in twenty chance of one of them tasting like earwax. Or chocolates that can’t hop away from you when you aren’t looking. I mean, for fuck’s sake.

And following from the above, everyone is so concerned about the damage to the karma done by the unforgivable spells, or whatever, which is supposedly why nobody goes to all-out war with the Death Eaters. But then no one gets the brain cells together to realize that Voldemort and especially his goons are surely vulnerable to conventional weapons. All anyone has to do is camp in a corner with a shotgun and then call out they-who-must-not-be-named, enticing them to appear to simply get Swiss Cheesed before having clue one what’s going on. Maybe Voldy can’t be truly killed by any form of physical harm, but the entire premise of the story begins with the observation that he can be put to considerable inconvenience, putting him down for quite some time, and thus buy the protagonists plenty of time to figure out his stupid riddles and find all his horcruxes. Then simply drive over whatever’s left of him with a steamroller.

Small scale: The lack of constant mean pranks. You can’t tell me that shitbag kids aren’t polyjuicing everyone into dogs and donkeys 20 times a day, and thats the PG version. Ain’t no way dudes aren’t making their dicks 30 feet long for fun.

Large Scale: Wizarding culture is tremendously trite, shallow, and terrible. They are the worst of humanity with super powers, all because of …genetics? It’s still super privledge eugenics at the end of the day, and Voldemort is just making daylight decisions about everything that the non-DeathEaters blithly comply with every single day.