Group chats have been in a state of (developer-)abandonment for a long time now, more than a year easily. Core features (like modding and unmodding people) have been broken and there have been no attempts to fix anything with those issues.
However, I do believe group chats fill a role on Twitch and I wouldn’t want to give up on them. Even in this broken state, I continue to use a long standing group chat. But without any developer time on them, they obviously won’t reach their potential.
Would be great to hear what Twitch’s plans/intentions are for group chats. Will they be fixed and iterated upon? Will something new replace them?