Hi Mike! not wishy washy at all, we are all devs here https://github.com/geeklist run by devs for devs. Go to the about to learn more, but is pretty straight forward... an achievement based street cred builder for developers.. easy.

for now we only are open to twitter users.

They allow you to cross-post certain things to Twitter.

Apart from that, Twitters permission system is very coarse. There are only three access levels.

Seems like they use twitter with a hashtag instead of an internal messaging system