I have a fanclub. It's pretty big. Once, a friend of mine got cursed out by said fanclub and got banned for 2 weeks. Mind you, he got cursed out!
The guy who did it got 2 days. I no longer use my regular PSN for these forums. Moderators find an opinion that might offend them, and they'll ban people willy nilly. Also, people find anything that they disagree with, mostly from the fanboy camp (not like 'my fanclub') and mods will most probably respond with a banhammer.
The safest way to protect your account, and the money you invested in it, is to browse and use these forums as an alt.