Twitch is explicitly not a free speech platform: https://dotesports.com/streaming/news/twitch-isnt-a-free-spe...

"Twitch prioritizes minimizing harm to our users over freedom of expression, and we will limit some expression with the goal of preventing, protecting users from, and moderating hateful behavior and harassment."

This may come as a surprise to the average HN viewer, but not every tech company strives for a libertarian ethos