Banning IPs wouldn't really work, as most people still have dial-up, and with dial up you have a thing called Dynamic IP, meaning that everytime you log on to the net, your IP addy is different. The only solution I see is not really a solution...just ignore the trolls and flamers.
While I believe that LB had valid points, there is one aspect that he and others might not have realized. I, for onr, didn't bother entering because I figured that going against LB, P81, Skinman etc. would be pointless, as they are the best around these forums and I figured they would win hands down. The judges might not have been told who the entries belonged to, but most of can tell the work that these guys do by just looking at it; maybe they didn't pick them to win, so that the newer modelers might gain some confidence. Either way, I feel it was a bad idea to begin with. A contest officially sponsored by Taldren is going to leave some bad blood. A contest run by a "mere" member of the forums, as we have had before, makes more sense...no ego wars as the entrants know that the judging is going to be subjective.
Keep the community, get rid of official contests. IMHO