The fine represents the first major test of the Online Safety Act’s reach. If 4chan continues to ignore Ofcom’s requests, the regulator could seek a court order to force UK internet service providers to block access to the site. A spokesperson for Ofcom said “sites that don’t comply and put people and children in the UK at risk can expect to face enforcement action”, but stopped short of threatening to ban the website.

https://observer.co.uk/news/business/article/messageboard-4chan-refuses-to-pay-fine-over-free-speech