Some of the people who went to work for Obsidian also were talkative on the BIS boards, so I have no doubt that as time goes on, they will talk here too. - the boards are new, and really, they don't have to post here to be able to talk to each other.
As far as I know, they are in the process of getting mods - so that topic won't be as big an issue (hopefully) in the near future.
And lastly, they don't have much to talk about on the game(s) yet, as they still can't say much - if anything.... so give them a chance.