Endless Redirects Suddenly Disable Site

Looks like CloudFlare just went live. Any idea what the cause of the
troubles is. It would sure be nice to have some kind of inocculation.

Okay in that case, CloudFlare requires that you use the “Add WWW” option here. However, if your WordPress install isn’t told to do the same, they conflict and result in the infinite redirect loop. So, in your WordPress dashboard, go to Settings > General:

Both “WordPress Address (URL)” and “Site Address (URL)” on that page should both have the ‘www’ manually added there so that it will cooperate when dreamhost forces the same.

Try that