alt Hacker NewsHN/YC cares more about community aesthetics than your right to be forgotten.
Try to have your account and its contents deleted. The best I was offered for my 2011-vintage account was to randomize the username, and the reason I was given was that browsing and old thread with a bunch of deleted comments "looks bad".
I agree with this policy, deleting comments isn't fair to all the other people who replied to that comment. I don't see how this goes against what I said?