In Britain, "possessing terrorist documents" is a crime. To the government's great astonishment, this hasn't stopped people from killing. https://www.reuters.com/article/us-britain-security/britain-to-toughen-terrorism-rules-after-london-attack-idUSKBN1ZX0NV
Liberdon is a Mastodon instance for libertarians, ancaps, anarchists, voluntaryists, agorists, etc to sound off without fear of reprisal from jack or zuck. It was created in the wake of the Great Twitter Cullings of 2018, when a number of prominent libertarian accounts were suspended or banned.