This back and forth from the comments on the article is interesting:

What the article ommits: The youtuber in question has a long history of threatening smaller channels with various actions against them, from brigading to lawyers to copyright strikes, if they do something he doesn’t like and don’t bow to his will. So I’m not surprised to see someone was fed up with him eventually.

Two wrongs don’t make a right as my nan used to say. This YouTuber being a bit of a grunt does not negate the fact YouTube itself is happy taking a hands off approach to a fundamental part of their business model because the ones it affects are not the ones that give them most of the money.

Of course it’s a problem, I just feel 0 sympathy in this case and I find it ironic that it’s him especially that got hit with the same treatment he threatens others with.