Elon is slowly learning why all the policies that twitter used to have existed.

In this case, twitter previously used to have clear content policies and would take down content that violated their own policies, and governments would generally let twitter do content moderation in accordance with twitter's own policies, because that was predictable and manageable.

In the name of free speech, Elon decided that twitter would not take down content unless it was illegal. The brazilian government has realized that twitter has effectively delegated their content policy to the government, and is taking advantage of that for their own gain. Elon does not like this.

This is not completely factual. As was demonstrated by Twitter Files Brazil, censorship requests by the judiciary were happening well before Elon bought Twitter.

Probably in order to officially leave the country without causing too much bewilderment. Brazil has very low CPM (~1/10 of US), specially in twitter, high bandwidth cost (~17x of US in 2016) and the laws and justice system imposes a lot of obligations and fines.

Probably upset Bolsonaro didn’t get reelected.

Just read the Twitter thread. It's egregious stuff.