Comment by immibis

But in the PRC it's illegal to say you don't like the government, while in the UK it's illegal to say you're going to blow up a mosque because Muslims are rats.

Yes, in every country (including the USA) (excluding North Korea because it doesn't have social media) it's possible to get arrested based on a social media post. However, that's overly reductive. Has anyone paid attention to which posts get people arrested? No, because that wouldn't make the UK look nearly as evil as the people saying this stuff want it to look.