I've put considerable time into this, including speaking with Ofcom directly. The guidance Ofcom issued for small site operators last year was that they did intend to target "one-man bands", and that there would be no guidance on specific numbers that constituted the "significant number" of UK visitors which triggers Part 3 and 5 provider restrictions.

My agenda is that you live under a modern dictatorship that censors the content you see on a screen. Get a better government!