Earlier quoted context omitted.
> PS: Make sure to change your Twitch (and possibly Prime) password. Twitch is already prompting users to do so based on Reddit posts. This is not worth worrying about. If Twitch is making you reset your password, that means you don’t need to hurry because they’ve already locked your account. If your password hash leaked, the important thing isn’t Twitch, it’s every other place you used the same password.
Just spend 2 minutes and change your password instead of spending 2 minutes thinking about whether you should.
I remember some services send you a message telling you to change your password anytime a new device logs in or even fails to login to your account. That causes most people to pick weaker passwords, since they're not all using manager apps.