* Request extradition
* Fine local advertisers
* Confiscate any payments
* Harrass the ISPs who carry the service
* Harrass local users
I do nor advocate any of the above
But the idea a business that trades internationally can say "fuck you" to a nation state is childish
There can be terrible consequences
This often works and rarely lasted more than a day. I don't think I was ever personally affected by one of those blockings when I was in the country.
I don't really remember any case where a large server failed to comply and remained blocked.
EDIT: There are things that were blocked and remained blocked forever, but they're often things like piracy, CSAM sites... which are things that often get blocked even in the USA. Sometimes this is a harsher block directly at the host of the website, either via court order when it's a Brazilian host, or because international laws were broken, or because the host simply complied.