I don't spend much time on Wikipedia. I've started to dabble in various bits of editing, mostly on religious topics.
I'm considering starting a mini-wikiproject to get rid of pointless character evaluations (positive or negative) in entries about historical figures. I come across these occasionally on Wikipedia and they annoy me; often they're clearly left over from imports of older biographical material. We wouldn't tolerate sweeping judgements of character in encyclopaedia entries about the living, so I don't see why they should still be there for the dead. And as a teacher, I find them particularly annoying when they migrate from Wikipedia (or for that matter from older biographical material) into student essays!