Well, you wouldn’t think so, but a lot of the anger on Tumblr the past few days has been that they’re destroying major communities (more than just NSFW; they deleted everything tagged with “chronic pain”, for goodness sake, and how is that relevant?), but leaving all the Nazis alone.
Deleting "chronic pain" posts makes sense if Tumblr is trying to eliminate drug-related posts with as much cleverness and grace as the porn purge. (Chronic is uncommon slang for marijuana.)