@Satsuma They're apparently messing up nsfw blogs (legit artist ones, not the obnoxious porn spam bots polluting the tags). I haven't logged in for a while myself, but my understanding was that tumblr used to be one of the best platforms for curated fandom porn and I'm having a hard time thinking of other uses where people haven't already largely migrated elsewhere.
@neal its still a pretty big hotspot for fandom community in general, though i imagine without the nsfw blogs that’ll take a pretty big hit