It seems Ozymandias has retired from tumblr. Maybe some other tumblr-using Lesswronger (I don't have an account) could take up stewardship of the Rationalist Masterlist while it still exists in Google's cache? It was a nice way to find fun posts.
I took the opportunity to create a new masterlist, based on Ozymandias's.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.