Its name is Rumblr. Its mission is to destroy Tumblr.
Why? Nobody knows. There are no direct links.
What we do know is that I was following 128 people before the attack. Now I am left with only 4. The four Tumblr’s listed below survived and will continue to fill my dashboard with content. I don’t think I am ready to rebuild.

PeterWKnox
Topherchirs
JacobBijani
Whatson