I Have a Suggestion for Similar Worlds

Groups needs a bit of love. (1) there are many groups on almost identical topics, before a new group is formed it would be best to suggest to the user 'hey, did you just wanna chat in one of these groups instead?', (2) there are lots of empty groups where someone made the topic but left it up to others to take the first step. That's not bad, but those with the most active conversations should be bubbled up to the top in browse and search mode, preferably with a notification of how active the topic is