Pet peeve:

People who finish typing sentences with ".."

People. Either you're telling me that you're completely illiterate, or you were going for an ellipsis ("...") but were just too damn lazy to tack on the extra dot. It's like "I was gonna refute your point with an actual counterpoint, but I got lazy, so you should just infer it." It makes me think of the person typing in a valley girl accent-- you know, where every sentence ends with just a little bit of drool.

I heartily thank poisoninjest for beating me over the head with my own misused ellipses several years ago. I now see the light.