I feel like it goes in a cycle. The dumb questions get bad, people start pointing it out, several sarcastic posts get made, post about how it’s rude to point out the obvious solution of googling those questions, then posts slow down for a while and gradually pick back up till the dumb questions get bad again.
It also seems like June, late September/early October, the second half of November are when the dumb questions peak, which makes sense as those are the times with lots of first time guests.