create temporary (or permanent?) groups to continue chatting about a topic.
Oftentimes interesting topics come up in streams but the only way to chat about it is via @ which everyone can see. After a while you need to drop the topic to not bother everyone else. It would be very useful to have the ability to create a temporary (whisper) group to continue chatting about that topic without bothering the stream's chat that might already have moved on/lost interest.
[Deleted User] commented
This could cover that. Let me know what you think and please vote for it.