Ask PG: How to delete an (old) HN account?

Often, I write something which I later find inane, particularly when I was emotional at the time.

When I first found HN (about 2 years ago), I read your essays, got an account, and left a puerile comment. The stupid thing is that I had used my real name for the handle. I later forgot all about it and used only this account. Today, I "binged" myself for the first time and the old account, including the comment, reappeared out of oblivion (it never did on Google).

Is there a way to kill this account for good? I don't want potential employers to associate me with that kind of tone. Let's just say it was a bad time for me.