I don't mean for the tone of this submission to be confrontational — I'm a big fan of the HN community and consume much of my news here — but I was recently troubled to learn that HN doesn't let users delete some of their content (most notably, user accounts).
Granted, this isn't a new issue. I see that, according to The Unofficial HN Blog, the solution is to keep your profile anonymous.
Still, HN's treatment of personal data is somewhat surprising, considering that this community is so progressive when it comes to discussing privacy issues. In fact, some of the privacy-related HN posts about Facebook inspired me to delete my personal data from that site.
Why does Facebook seem to be more accommodating than HN when it comes to giving me the freedom to access my own data?
Imagine one of those collaborative drawing programs in which multiple users can make marks and the resulting drawing is the sum of all their marks. Should one of the users be able to come back later and claim that he wanted all the marks he'd made deleted, on the grounds that they were "his content?" I'd argue that someone doing that would be violating an implicit social contract with the other users.
Similarly, if someone wanted all their HN comments deleted, they'd ruin other people's comments by making them incomprehensible. And how far would deletion be expected to go? If user y quotes part of a comment by user x, is that also supposed to be deleted if x wants his comments deleted? It should be if it's "his personal data," right?
We do delete individual comments and submissions when people do something they worry will get them in trouble. That combined with the fact that accounts are anonymous and that users can wipe their profiles seems to me to strike the right balance.