Roleplay Mode
A Roleplay mode option that allows streamers to switch on and off. Big streamers with decent viewers struggle to play out scenes within roleplay due to chat hoppers spreading "in character" information "out of character". This ruins a lot of content for the streamer, causes toxicity in their chats and just isn't fun for the overall viewers.
Roleplay Mode would basically prevent this. By me watching one streamer who's roleplaying, and going to another streamer who's roleplaying, I would have a 10 minute chat timer to wait out before I can talk. I feel like 10 minutes would allow enough time for situations within the roleplay to pan out and allow content to flow more naturally, and also prevent the toxicity we are seeing in chat.