>>11340900
Adding to what >>11340907 said, it's not just social media sites. Effectively any website where users can upload pictures (like a forum where people talk about cars) has to comply with this new law. The idea being a user may upload inappropriate adult content, and therefore a kid might see it. The short of it is, if websites don't comply with these incredibly intrusive legal demands, the UK government will try to sue them into oblivion. So it's likely that most small and medium sites will take the easier option and just ban UK traffic entirely.