[inigyou]

HN ignores GDPR, in particular Article 17, and it hasn't been taken down from the internet or even blocked in the EU.

[ndsipa_pomu]

I'm curious - what kind of PII does HN make available and has it ever refused to remove it when asked by the individual concerned?

I can't recall HN asking/requiring PII from me in any fashion, so I don't see the relevance. If a commenter published some PII about me, then I wonder if HN would remove the comment if I complained to them about it. As I see it, HN isn't acting as a data controller.

[inigyou]

You can post your home address in a comment and then you can't delete it.

[ndsipa_pomu]

That seems a bit contrived, but it would be similar to if someone else posted your home address in a comment. Presumably emailing HN to request its removal would be the correct thing to do and I wonder if HN would remove the PII.

Edit: it's covered by HN Privacy policy which is available here: https://www.ycombinator.com/legal/

TLDR: email [e-mail] for privacy concerns which should cover removing comments.

In my opinion, that seems compliant with GDPR.