Detect and block VPN and TOR / onion routing users
Very simple, VPNs and TOR / onion routing are routinely weaponized by bad actors such as serial trolls and harassers to effortlessly ban evade Twitch's IP bans, especially when the bar to create new accounts is incredibly low (if not virtually non-existent). The time has come for Twitch to disable these backdoors that enable harassers and does more harm than good. Twitch uses IRC for its chat functionality, and IRC natively supports detection and blocking of these services. (Twitch just has to enable it)
That's already the case, and it's a masive inconvenience to legitimate users for absolutely no benefit. Banning VPNs is a mistake that Twitch is making.
[Deleted User] commented
Don't block them, but maybe mute them or flag them in some sort of way. VPN and TOR are one of the only ways that you can have an internet experience where you're not being spied on by some massive companies, let's keep as much of it as we can available for everyone.