This needs saying

I'm aware that some people on this site were tagged in a vile rant by somebody whose page has now disappeared.

My advice to Prose is to report this guy to the police

I assume he is American but not sure. If he is, those threatened by him should also report him. It's very sad that such a great and supportive site has been subjected to this. But I fear what this unstable person might be capable of.

I hope those tagged are all okay.