I don't seem to give rep out too regularly, though sometimes clump a few reps in a single day, especially if there is a thread made of WIN.

I tend to give positive rep while saving negative rep only for the few posts where if the content was said aloud I'd probably punch the person in the face for saying it. I'm not that aggressive a person neither these days, so those times are few and far between, generally if someone is getting too nasty to a user I like.