Zeroknowledge proof based age verification service when?
We've already been down this route in the past with "Adult Verification Services" after the Communications Decency Act 1996, when it quickly was turned into a monetisation mechanism for porn sites. E.g. see:
https://en.wikipedia.org/wiki/Adult_Check
(One might think the UK government would have someone sufficiently aware of history to realise how spectacularly that failed to stop access to porn for minors, but it seems not)
EDIT: Also, last time this specific UK attempt came out, MindGeek, the company which owns Pornhub, was one of the company vying to handle the then-proposed identity checking mechanism.
I just assumed there were, available to any very motivated party.
And how effective and wide spread is browser fingerprinting to de-anon someone?
How did kuschkufan manage to put those words into my mouth?
Really, how did you get that from what I said?
I was just pointing out that it might not take a credit card to ID you. And I really don’t know what datasets are out there, but I assume the worst.
Sure, and they're built using data collected from shady sites which ask for personal information such as CC details under dubious pretenses (like age verification) and associate it with the visitor's IP address.
These de-anonymizing datasets exist because of poorly considered policies exactly like the one being discussed here.
I also want to make clear I was not endorsing the policy outlined in OP. Just curious.
Very, very few porn sites anyone actually uses are hosted in the UK and therefore very few must obey UK law on what they host and to whom they show it. But they can be pressured into it, I imagine.