Whew, I didn't know Twitch took that much out of the money that went into the Streamer's pocket... But hey, it contrasts a lot with Steem's form of payments and policies overall. Over here there are literally no fees if you want to donate X amount to someone and that's one of the reasons of why I believe in Steemit as a whole.
I personally can't stream because my internet connection is absolutely trash, but I have looked into uploading stuff to Dtube because I thoroughly believe I could get as much income out of Steemit as I would in Youtube or other sites like that.
Hooray for uploading original content to Steemit!