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.
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.
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.