This morning saw the most substantial attack on the site by spammers in it's operating history. I am about 50% done with some changes to the site that will make it easier to use for regular users while preventing new users from getting their content on the main page. I hope to be able to post an update this weekend. Until that time, new account registration has been disabled.
I still think we need to implement an invitation code system. Almost every single user on this system that is active, came here because they already knew at least one person present.