What annoys the hell outta me with all these people who want all this free help, is you take time out of your day away from doing other things to help them and only 1 person out of 20 will bother to reply with a thanks that worked.
My favorite one so far has been when someone asked a question, then i gave an answer that was the soloution to their question, then i was wrong cause they cant explain what they are trying to do better...