I've seen that happen in another forum. The forum founder there was a decent enough bloke, but the busiest posters were a bunch of cnuts who couldn't spell sentences without throwing in obscure abbreviations or replacing letters with numbers.
The meanings of their ridiculous messages didn't put me off - "STFU" just looks like a drunken slap on the kayboard. It was their complete lack of any ability to get their hatred of new members across clearly. If you're going to do something, even if it's bad, it's best done properly so as not to waste everyone's time.
The complete lack of anything like that here is what makes this community a great place to learn new coding tricks.