@scottjenson one huge problem with private mentions is that they actually aren't equivalent to DMs... because if you try to talk about another person and link to their profile, you effectively "mention" them and they can see the message. I don't know of any other DM that works this way and the UX is extremely confusing to users and just wrong IMO.

I think private mentions should be scrapped entirely and reworked as a different AP object type than Note so that they are treated differently.