A good way to be a "non-noob" is to post intelligently. Don't lip off to mods, be friendly, and don't post short things like "LOL U R GHEY I PWNED JOO!!!1!1" Grammar is important, too.
Live by the rules of the BBS and listen to what mods say, because some of the things they post can really help you avoid getting banned... Example of a mod statement.
Also, if you submit good, well thought out flash, you earn respect.
Don't try too hard to be everyone's friends, dont kiss ass.