Inform users when they are opt in to a test.
I have been an early adapter for many new implementations on twitch. Sometimes this is great but sometimes it actually breaks things so that i have to log out of my account to watch streams. Last time this happened was with the implementation of the stream minimizing to bottom left when you scroll down or change to certain pages. I don't mind testing new features and giving feedback, but i would like to know when i have been selected as a test subject.
Is it too much to ask to be informed when something is implemented? I would be happy with an e-mail or an message on twitch. It's just frustrating that sometimes things are broken and when you go and try to figure out what is breaking things it's something about the account having test features.