ctml Looks like some version of this has been discussed in a few places recently! askvortsov is another.
In the long term (maybe for Flarum v2.0), I would like to see a radical revamp to the group system with some kind of hierarchy, the ability for group self-management, and an update to the groups/permissions admin page that scales better as the numbers of groups and tags increases drastically. I like group types as a concept: we could even separate permission groups from non-permission groups, so some could be purely aesthetic, maybe...