> they take a large cut from subscribers

I'm surprised they don't have a 'choose your own revshare' setting, allowing the creator choose how much to pay twitch.

Obviously twitch will recommend more profitable creators, so you get a kind of 'race to the top', with creators offering twitch a larger and larger revshare, knowing that unless they do, their audience size will dwindle.

It also encourages creators to come in from other platforms - if you already have an audience and just want to extract money from them, then you don't need to be in twitches recommendations and can choose a low revshare to milk the subscribers.