Comparing these forums to the WoW forums, I can't agree with removing the 20 post limit. In the WoW GD forums, the useless threads completely outnumber the worthwhile, and it's sad. People post to troll, to be "first" posting in a thread, to "post in a epic thread" and forum threads often devolve into name calling and/or borderline ERP... it's just ridiculous. I think the daily post limit probably cuts down on the trash posts here, since folks need to think a bit and not waste their posting allowance.

Just my two cents. :-)