So I recently learned from Elly through a news bulletin (that appears to be pulled) that the site blocks new users from registering from Gmail, Hotmail, Microsoft accounts. I think this is a poor idea because I know that I wouldn't be here under this policy. I wouldn't have registered, and I don't think my response would have been unusual. I can't imagine why site administration thinks this is a good idea in the long run, even for purely selfish reasons. Do you want to slowly strangle your site of membership?