It's not loading for me, either; I'm getting my ISP's "website suggestions" page, which tells me it's probably a DNS issue (this page theoretically only shows up when a domain name is not registered).

I wound up googling the URL in the "Recent on Rationality Blogs" sidebar, and was able to read Google's cache of the latest post. Said cache includes no comments. I did not try to comment from the cached page (I didn't expect it to work).

[edit: This is with Firefox.]