Looks like we have a bot in our steam group, either that or like hobbesy the account has been stolen. Or the player has a virus or something. The name is "dehmanpsp" the profile looks legit, but I got sent this message from him.
dehmanpsp: Hello ..
http://steampowred.org it gives you a Free Game for Every LoGiN

,, Send it to your friends and you will get more Games !
Now obviously that site is a phishing site. And hopefully none of you would fall for it, but this is just a headsup, until further information I am going to block him.