It’s a minor niggle I was joking about with hyperbole, but it does bother me a bit because ‘when’ means a specific time and ‘whenever’ means any of multiple times. Their meaning isn’t interchangeable.

Like: ‘I talked to my dad when he was in town’ means I talked with him that last time he was in town, but ‘I talked to my dad whenever he was in town’ means any or all the times he was in town – it might have been a hundred times or two, I can’t tell, but not the one time like the other more accurate sentence.

It doesn’t make me mad, but it very briefly ruffles my feathers. (e: and then I move right on)