“When creators and/or moderators run ads manually, we recommend communicating to your viewers when an ad break is initiating,” Twitch writes, which you can’t do when Twitch is running them for you. In Twitch’s Creator Camp - the place where they tell you best practices for the site if you want to be a streamer yourself - Twitch says that creators should tell their community that an ad break is coming. Mid-roll ads have been a part of Twitch for a long while now, but historically they’ve been controlled by streamers. Platform controlled mid roll ads on live streams are G A R B A G E /KTtLbNHVEs- henry September 15, 2020