Allow us to change our Channel Name!
Make it a paid option so no trolls can mess around with the names and impersonate others easily. I'd be down to pay a $20 for a name change.
This is a solid option and Twitch deserves it.
it should be separate username and channel name. it should be free to change but with time restrictions like once every 90 days or 6 months
Amazing Grace commented
Already mentioned the same somewhere else - DeviantArt for example has a pro membership for $20 (or 30?) where you can change your name once - I'd totally be down for that on Twitch.
It wouldn't be so useful if you're talking about trolls. They still can easily create another account.