Check the modlog for proof, a discussion post about moving this instance to an instance that shan’t be named now got removed for “linking to instance featuring pedo content”.
Ironically that exact possibility was reason for the discussion in the first place so seeing it happen this quickly is a bit funny.
Not sure how best to go about linking to said instance since it seems to get your content removed. DM’s would be the only solution I guess but not sure if those are checked as well.
Like @neshura@bookwormstory.social said, those sites have instances drop on and off the rankings all the time. I had been checking lemmyverse quite frequently over the past couple months…for no reason I am going to mention in this thread…and instances will disappear and reappear every couple days. The ml instance in particular was prone to that. No foul play going on, just typical software flakiness.