@thenexusofprivacy @stefan “Obviously this only works with cooperative software ... but that's also true with stuff like DMs and followers-only posts, so it comes with the territory here.”
No, followers-only and DM *do not* require cooperation from other software because there is never any public link.
When designing peer to peer protocols, it is inadequate to offer users a guarantee which you cannot fulfill. The predictable results are software which doesn’t work as advertised & angry users.

