Why would you not promote other streams? Frankly the channel should be all about being a way for other content creators to test out casting with one another and in turn letting a variety of audiences explore other communities. If anything I wish people would be more aggressive with it. Of course lots of people helping with the channel are simply casual streamers but if someone wants to grow their audience then by all means.
In general I wish more people actually introduced who the hell they are when they’re using the channel and gave some color. Doesn’t need to be a theater epilogue but some casual conversation between casters prior to the event would be nice and a good way to connect with audiences.
For instance tons of people are still probably unaware farm has a new twitch channel now, and plenty are also probably unaware theduelist, willow, and derp exist. Pair them with an experienced player and utilize the standard color+analytical caster model.