Fake high scores
There's one thing that irritates me about some of the users on this site. They post fake high scores. Now, I'm not a loser who spends all his time trying to get high scores, but I like to waster some time at work on this site, and a few games become some regulars of mine.
The following users (there are more, but these are the ones who are without a doubt) keep posting fake high scores, and I hope their accounts get deleted.