If 4chan continues to ignore Ofcom, the forum could be blocked in the UK. And 4chan could face even bigger fines totaling about $23 million or 10 percent of 4chan’s worldwide turnover, whichever is higher. 4chan also faces potential arrest and/or “imprisonment for a term of up to two years,” the lawsuit said.
Isn’t it people in the UK that go to a US company and do business there?
Not with the internet. 4chan uses a payment processor that allows UK residents to pay with UK currency.