Separate Subscriber Chatbox
Allow streamers (partners) to view separate chats for their viewers and subscribers.
Subscribers deserve to be recognized and have their messages read. Having a separate chat-box option available to pop out to view ONLY subscriber chat would help ensure the streamer never misses a message from their paid subscribers.
This doesn't mean the subscribers have to chat in a separate area, it simply means that Mixer pulls their messages from general chat and copies them to the Subscriber chatbox. This chatbox could be an optional pop-out or an add-on to the already existing pop-out chat.
When the chat gets moving, it's only fair that subscribers have a better chance to not get lost in the sea of mass-messages.