by "keep it going" I mean that particular channel. they like that particular streamer, and/or the chatI can see this point, but then I kind of don't see this point
Mainly because when you say "keep it going" I think you're saying continue to pay the streamers bills for them. They aren't using their own streaming site, so regardless of them getting donations, twitch will work for whoever wants to go there and watch footage.
these streamers do spend time and money to stream. I'm sure most started out just doing it for fun. but when people start expecting you to do it consistently, at some point it does become like a job