@Tamerlane @MawMaw
A bit of interesting information if you don't know, insults like idiot, imbecile, and moron were originally real clinical terms used to describe people with mental impairments. So, those actually have a somewhat negative history attached to them, yet they're free to use by everyone.
https://www.merriam-webster.com/words-at-play/moron-idiot-imbecile-offensive-history
While, Twitch users are simply using the word "blind", which has tons of other accepted and often used modern definitions besides "people who can't see".
https://www.merriam-webster.com/dictionary/blind
So, I have no idea what they were thinking.