My absolute favourite are ones where you get a snap shot of people’s lives in the recent past. For example “How did you see in the new millennium?”
I also really like the Sunday ones when people tell you their plans and what they are having for dinner. I find it very comforting.
I like the woo ones too and conspiracy theory threads but I tend to reread the ones in classics as they don’t se to get off the ground so much at the moment.