A while ago, some posters mentioned that it would be good if LW had a forum. Earlier this week I was planning a role-playing game with some other users and decided that a forum would be a good place for us and other groups to play online. And the Less Wrong Forum was born.
Currently, the forum has three boards: Gaming, Less Wrong/SIAI Related Topics, and General/Meta. The Gaming board is for RPGs, Diplomacy, Zendo, or any other games rationalists might enjoy playing together. The LW/SIAI board is for discussing any of the topics we normally discuss on Less Wrong. The General/Meta board is for random topics and discussions of the LW site or the forum itself.
EDIT: Looks like a supermajority of commenters don't want the LW board to exist because it would be redundant with the discussion section. I'll leave it up for a bit longer, and take it down if nobody says they support it.
I encourage everyone to check out the forum and help make it a fun and useful part of the online rationalist community. Please make suggestions in the comments (or on the forum itself!) about how it can be improved.
EDIT: Due to problems with trolls, registration now requires an invite. If you want an account, say so in the comments and I or the other admin (Armok_GoB) will get you one.
While its application to gaming might be reasonable (a LW gaming forum for groups formed on the main LW site seems a very good idea), I feel discomforted by this development. Internet forums have their own dynamics and if this becomes a real unofficial shadow site this might create problems. Due the different structure of moderation it messes with LW's status as a well kept garden.
You simply can't replicate the effects of the dynamics of karma voting and the special demographic that visit LW without the ... dynamics of karma voting and the demographic that visits LW.
The discussion section already fulfils nearly all the positive functions of a forum with barley any downsides.
Seconding the dedication of the forum to gaming. As mentioned elsewhere in this thread, a flood of gaming-only posts is something worth avoiding.
But I wonder if the /r/LessWrong on reddit would do. Subreddits seem nicer to me compared to the kind of shoddy proboards forum.