Bad idea...for many reasons. Number one reason being that all people that are new to AO are negged at least once by some jerk for no apparent reason since they are new they can't neg back. The people that ask how to hack stuff are usually banned anyway, so the AO system works pretty well as it is. As for the really long post....not really sure what you mean but I think it's a bad idea because people wouldn't want to join the site if they had to actually read a lot of stuff....I probably wouldn't. Besides, the non-sensical thread could actually *become* the next longest thread ever, lol.
Or Maybe all n00bies go on a trial period for there first month or until they reach so many posts. And in this trial period if they get negged once they are banned.
Or if they post something that is stupid like
HEY CAN SOMEONE TELL ME HOW I CAN HACK THIS COMPUTER, DEFACE THIS WEBSITE, OR MAYBE CRASH THAT SERVER.? Then they could be banned?