What's really the matter with meetings?

I mean, we've all been annoyed at some point by some management person scheduling meetings we think of as pointless but I've actually found myself enjoying going to one where people can discuss and share ideas (dev related, mostly).
Sure, it's not great when you are focused and you have to stop to talk to some assholes sometimes but other times it didn't bother me to think they value my input/opinion somehow.

Surely the reason for their existence is not to make you waste time, right? 🤔