As far as I'm aware - and I'm not a laywer - ATVOD makes it technically illegal for any business operated from the UK (regardless of hosting) to stream video online without a licence. Just like it's illegal to sell unclassified DVDs in the UK - and I've always assumed that obtaining said licence was just as impossible for spanking porn as it is to get BBFC classification. My understanding was that it simply wasn't particularly actively enforced, but that at any time they could choose to make the lives of British pornographers very difficult if they wanted to. I did see a recent article about various sites that were fined for not placing sufficient "over 18 only" limits in place - apparently a "click here if you are over 18" isn't enough any more, you have to put the content behind a paywall accessible only by credit card. Which is ridiculous - what about tube sites or free sites? What about the over 18s who choose not to have credit cards because they want to manage their money better? Anyway, regardless of the many questions that approach raises, it was only sites who didn't have "sufficient safeguards" in place against under 18s accessing the adult material that were fined by ATVOD. Which suggests that anything behind a members-only paywall isn't the focus of their attention... for now at least.