Virtually every forum on every topic - not just trading - would dissapear overnight were the anonimity removed. Personally, I think the anonimity removal and the dissapearance of virtually all fora on any topic would be huge benefit. The utter lying, lack of civility, unknowledable opinion spouting and on and on would all be gone. Anonimity is what has allowed crowds/mobs to do the things in history that few sane, civlized people would do on their own.
I would welcome 100% anonymity. I do know critics, and isn't this their Achilles' heel, would never welcome it. Could anyone imagine, for example, a character such as TraderZones in the open real life?