> there appears to be nothing about the site that makes it subject to the OLSA.

The regulators of OSA say otherwise. Or at any rate, they refuse to agree and won't rule it out.

____________

For the geo-blocked, reproducing relevant content [0]:

> A few months back I wound up concluding, based on conversations with Ofcom [1] that aphyr.com might be illegal in the UK due to the UK Online Safety Act.

> [...] This blog has the same problem: people use email addresses to post and confirm their comments. I think my personal blog is probably at low risk, but a.) I’d like to draw attention to this legislation, and b.) my risk is elevated by being gay online

[0] https://aphyr.com/posts/395-geoblocking-multiple-localities-...

[1] https://blog.woof.group/announcements/updates-on-the-osa