Plus they don’t see ad revenue, so there’s no profit incentive to keep bots around acting as if they’re real traffic. If anything, Lemmy instances are disincentivized from allowing bot traffic because it means more traffic than necessary, which costs them bandwidth.

Exactly. Sure it sucks when it happens by accident, but it’s to be expected to some extent. It’s when someone is doing it intentionally to fuck with you that it really gets under your skin. It’s disrespectful.