I've never lived in an HOA, but there's one place nearby that has one and the drama that occurs on Facebook and Next Door because of overzealous HOA staff there is hilarious as a bystander. Apparently, no play equipment (so swing sets, etc.) should be seen from the front of the house. So multiple people got fined for having a play set in their back yard, but set to one side of the back yard. There's two separate sections of the subdivision, one by "the lake" and one on "the golf course", and there's all sorts of drama at the fact that golf course people aren't supposed to use certain amenities even though all the dues are the same. The lake side is gated, with only one entrance/exit, and the people who live at the backside of the lake want the emergency gate opened but still gated (RFID) but the people up front think that's a waste of money, etc. Fun times.
ETA: OH! And the most fun is the discussions about the elections. Because apparently their board has changed the candidacy rules to make it where they can never be voted out. Or so the people who don't like them say.