They seem to have fixed their security error. For about 2-3 weeks there after the upgrade, 95% of the time I'd try to go to the forums it'd put up a security error. And the times I was able to get in I didn't see any threads about it so it seemed like I was the only one it was happening to. It happened regardless of browser too (saw some things like clearing some setting in Firefox to get it to update the security certificate, and that didn't work).
While I don't like the excessively bright white default, the "dark" version is excessively dark. I'd like a medium grey with orange and blue from the logo.