But judging from the responses of the orange box forum, not many players of the game was responding to the forums. Good number read it though.
Also, users come from different part of the world, given server response will differ depending on where the players are located, it might be hard to get all players in the same game unless there are a ton of players. Different time zones too.
Basically you just go into Steam and create the group, then members would simply click the big join button. But since it's for this forum only we should have it invite only.
I'm actually quite impressed at how it works. When you log onto Steam and go to the community page it will show your clans with numbers of people online and playing. Just a really quick way to get us all in a single game. We don't have to bother with all them clan name tags business.