It may not matter to most people since the site seems to have a lot of models, but:
Since you must agree to the "terms of service" to join, it's odd that the terms of service link does not actually go anywhere. I thought I'd see what the terms were before putting in my email address, but the link in the sign-up window and the links at the bottom of the home page for 'About' and "Terms & Conditions" do not link to anything.