When I first joined:
-I thought posting helpful things to people, even if they weren't really that helpful, would get me into adv+
(I wanted people to see me as helpful, even though now I look back and realize the stuff I posted then sometimes wasn't helpful. I once offered advice about uninstalling the manager by telling them to drag it to the trash and delete it, but that was only for macs, and the person had a windows)
-I thought ABing too much would get me frozen so I used the scheduler, because I was worried about leaving it on too long (I don't use the scheduler anymore)
-I thought'd I'd make millions with Abrosia in one day
-I thought I was a super elite hacker
-I thought all the people who were adv+ and above were gods and super awesome and I wanted to be like them (They're still super awesome)
-I kept thinking @Waser Lave was Waser Lazer and Waser Lava, so I kept spelling it wrong. I kept reading it wrong.
-I was really quiet for days because I didn't see anything to post in, and I thought'd I'd sound stupid if I did (I was mainly in the NP part of the forum, and was worried about venturing outside it)
-I didn't think I'd ever get adv+
-I thought Sweeney ( @Sunscorch ) was really annoying and didn't like him too much. I like him now.
I can't think of anything else.