Elon is trying to enforce his views over Brazil’s law. To force a crisis IMHO.

He’s trying to see how far he can push his bullshit.

There is, the “Marco Civil da Internet” states that a business that works in Brazil needs to respect Brazil’s law, and non compliance may trigger block in it’s service by ruling.

That’s the thing though, to my knowledge Twitter didn’t break any laws, they ignored an order to take down accounts from their website. You could make the argument that in ignoring that order they were going against the law, but that’s about it. And honestly, that’s not the first time that has happened, this time they just decided to block Twitter because Musk was being a little shit about it, again maybe this will serve as a precedent in the future.