I only use amethyst as mobile app.

Groups are kinda of annoying on Amethyst. You cannot create groups or 'approve' posts on amethyst that are mad eon Nostrudel.

P sure private groups are coracle -only.

Groups / communities are a bit unused and it feels like not much is being done on them.

I hope a proper forum client comes about.

I have no idea about devving, but I would love to see communities show up as Discussion Forums. Doesn't need  to be anything fancy just phpBB or even look at the Craigslist forums. Simple and just works