In no particular order:
-People who respond to posts with "well written" or "nice post"
-Misuse of the word "nauseous"
-Ad hominem attacks
-Conflation of "judgemental" and "unwilling to try new things" (i.e. just because I have NO INTEREST in smoking pot doesn't mean that I care if you do. Sometimes, I, like Harley, am a subjectivist)
-People who learn that I don't like being touched, and then insist on trying to hug me. No, really, it makes me really uncomfortable.
-Relationships where the only topic of conversation is the relationship
-Control top nylons
-Desserts that look like they contain chocolate, yet do not
-Being forced to defend my convictions, as if they are unreasonable. (subjectivism again. I don't care if you live together, just don't yell at me because I think that it is a bad idea for me)
-Operas where they promise a sea monster in the second act and it never appears. Seriously, WTF?
I'm really not a misanthrope. Really.