It would be a community locked to the mod accounts of the rp games around dreamwidth (and we could invite the mods from lj and ij too, I suppose), where we could discuss certain topics.
Examples being opinions on handling sticky situations, advice for new mods, or even setting precedence to look back on with handling various forms of wank.
The reason I suggest it be a dreamwidth community is because trying to find a time for most mods, let alone every mod to be in an AIM chatroom, on skype, or whatever would be next to impossible.