Live announcement during livestream
Now that subathons and other long streams are trending on Twitch there's a need for feature to notify your followers that you're live during the stream!
Issue currently is that you need to stop your stream and restart it so the followers get notified that your stream is live! For example for subathon this is a big issue because you'll lose viewers when doing this.
Now my suggestion is to give streamer and their trusted mod(s) a chance to announce that the stream is live without stopping the stream! It could be available once in ~24 hours so it doesn't feel like spam.
Example. Streamer X is having subathon which includes sleeping on stream. Now every morning viewer count goes down a lot. Now when they wake up and/or start new day of content they could press a button which would notify all their followers that now the content starts again.
This seems like a feature that should've already been on the platform for a long time.
To prevent abuse of the feature, Id include a cooldown on how many times it can be used during livestreams. Maybe once every 2 hours, would be enough.
This feature would also be largely profitable for Twitch.
If the platform can keep people on the platform longer and make them consume more content, more ads will be played and people will be more drawn to support their favorite creators via subscibtions and cheers.