> as archive.org is blocked as well in the UK per ground truth from others on HN

I am in the UK.

archive.org is not blocked — not the Library or the Wayback Machine.

ETA: I just checked re: the comment toomuchtodo linked to, and it actually is blocked by default on my mobile phone as adult content, because I've never bothered to disable the adult content lock on that device. I get redirected to a page operated by my mobile network where I can undo the lock by giving them info; I might do that one day, might not.

For non-UK users: UK mobile phone providers all block adult content by default at the account level as a simple parental control measure, and have done for some time, largely because PAYG data is really rather cheap here.

Interesting but not particularly bothersome. Apparently this decision is about eleven years old.