If using an external donate button, Twitch takes nothing from the donation. Twitch takes around 30% of the initial Twitch Bits purchase, but nothing from any Bits donated to the streamer.

If a Hype Train happens too often, as Twitch points out, it can fatigue viewers. And yes, because this is a train, there are conductors, aka the people who donate the most bits and subs.

Twitch Charity, which entered beta on Tuesday, is a built-in fundraising feature that allows streamers to set a goal and enter “charity mode.” This displays a donation button and progress ...