Please, please, please! Can we have sub-categories? Threads get buried to quickly, people are to lazy to search and consequently you can have 10+ threads saying or opposing the exact same thing.
I should have also added that because of the rapid churn, a good idea may be posted and never brought to light simply because the people reading it at the time did not agree or were haters. Sub-categories would help with this issue as well.
Possible sub-categories:
UI
Chat
Guilds
Storyline
Classes
Races
Emotes
Game Mechanics
Trade
Mail