Twitch terms of service, or Rights to likeness and voice in times of AI

(Expanded from a recent Mastodon post .) A couple of days ago, I was looking at Twitch’s terms of service , and I noticed this (reformatted a bit for ease of reading, and emphasis mine): 8. User Content […] a. License to Twitch (i) Unless otherwise agreed to in a written agreement between you and Twitch that was signed by an authorized representative of Twitch, if you submit, transmit, display,…