If you’re someone affected by the platform’s definition of what they’re going to be banning, I strongly suggest you back up your Tumblr blog. RIGHT NOW. Info on how to do that is here.
I can’t think why my own Tumblr would be affected, but I’ll be backing things up too… because in situations like this one might expect the algorithm to get a little out of hand and make mistakes that one might or might not be able to recover from. (See this article.)
For safety’s sake – because I’d very much dislike losing the content I’ve shared with other people here – I’l be embodying my Tumblr content in a new WordPress blog over the coming days. I’ll share the address here when it’s ready, for those who might be interested.
But in the meantime, seriously: friends and cousins, back yourselves up.