Addressable lists (announcement system)
It would be useful to directly address a list of people. Glitch makes this possible by having an option to directly mention all the users in a list at once. This is rather dirty and leaks all the users in the list to every user on it. It would be nice to have something like this:
- Make it possible to directly address a list (by which I mean our internal, per-user lists feature)
- Have some fallback way to address them for legacy clients (like @user for user, open to suggestions)
- When addressing the list, add al the users in the list to the BCC field of the activity.
The main difficulty is handling the BCC/BTO field throughout pleroma. It's defined in AP, but we haven't supported it yet.