Have something similar to YouTube introduction videos for streamers
So it was particularly popular at one stage to find a somewhat pinned video on someone's YouTube channel (sometimes called introductory videos). It still occurs today but the nature of YouTube has resulted in people "pinning" a video with a lot of views, or they want to promote a video... Livestreaming however is different. If you limit the time for the intro video, people won't be able to upload a whole stream, they can upload a snippet of a stream, but that is their choice.
If it is to be used properly we could see videos with a physical introduction and how stuff works on the channel/rules. Also people could update the video when necessary, such as when there is an announcement that is significant (and will still be relative for a while) or explain why and what they will be doing with the games they're streaming, and even have some shout-outs
I know there are introductions in text on people's channel, but I think the "pinned" or introductory video on people's channel (active or inactive) could become a useful tool!
I hope I can edit this later if it makes no sense, but I need some sleep!