deleted by creator
A feature to allow communities on different instances to agree to merge with each other — a sort of second-order federation allowing large communities to be built out of smaller ones.
Community moderators can propose to federate two communities; if both sides agree, then posts & comments are shared between them. This lasts until either side chooses to turn it off (unmerge) or their instances no longer federate.
This lets multiple forums on the same topic agree to join forces (and moderation teams — sharing the load) while retaining the ability to separate later if it doesn’t work out.
This is not the same as a “multireddit” UI, since that’s just a client-side display of posts that actually reside in different forums. This is having the server side consistently treat the two communities as one, as much as possible.