Might be worth remembering here that Lemmy instances, including .world are hosted by regular people. Not massive multinational companies worth billions who can engage the best legal talent around.
If Hollywood comes after a Lemmy instance, Holywood have a huge legal team and endless money. The Lemmy instance has some guy. They could quite literally destroy a persons life. With that in mind, I don't blame any instance owners for erring on the side of taking a stance that won't put them in the legal firing line.
I'm not saying they are or aren't. I'm simply saying that we all know the big media companies go after people at the drop of a hat. They recently tried to get reddit to expose the identities of people discussing piracy over there. To their credit reddit told them no and defended themselves legally. And that's the issue. The media companies can accuse anyone of anything if it even slightly smells like piracy and the target has to legally defend themselves. This is fine if you're a multibillion valued company. Not so fine if you're just some guy who just wanted to run a Lemmy instance out of his own pocket.