He's always spreading misinformation. What's the point of trolling these message boards? Even if he's a heavily invested short seller I'm pretty sure trying to spread bad rep on the yahoo forums isn't gonna help lower the stock prices. What's the point of doing what he's doing?
I was actually in a class that studied market efficiency and we learned about this 13 year old who would wake up at 6AM, bash stocks or fluff them up in the early AM on yahoo forums (using many accounts and like 30 posts per stock), and sell or buy at night. He made like a million dollars...then the SEC caught him and he had to pay most of it back since he violated Yahoo's policies. He would also make up information about mergers, etc and that was illegal.