I cross-posted that lemmy.ninja post to the small local lemmy instance I had signed up on. The admin nuked the whole instance later that day including all accounts. I don't know for sure if it was related to that post or not. I haven't signed up there again, but it seems like it's just dormant now with no users. 🤷
I wanted a small, geographically close server, but I guess I'll stick with /kbin.