This is an idea I've had for awhile, I wanted to have it written down somewhere for future reference. This would likely be a substantial undertaking, but I haven't seen much discussion on the concept.
What if Tildes was able to have internal tildes? We would be able to 'start a tildes group' and have all~group.tag discussions under it. You could invite members to your ~group, and only those members could vote/comment/see on the internal group that they are part of.
This would make it so we can grow tildes, keep it small, and have personal obsessions and ideas. For example, I run a few discords that are part of nascent old/antique ideologies and philosophies, and we have been looking to move off of Discord (horrible for conversations and debates). I realize we could start our own forum or Tildes server, but the idea of tilde branches would be interesting to see play out in practice. I'm sure this has already been brought up, and will likely never happen, but I would love thoughts on the matter if you have them. This would likely be a large undertaking and I haven't really peeked at Tildes source since launch, so I'm not sure how the structure is these days.