[Slansitartop]

Once there's a reply it can't be deleted, only edited to remove the content. After two hours that's not even an option anymore.

Generally, I think it's good policy to be very guarded on the internet and/or change accounts often. There are all kinds of awful people out there, and you can't control who you may come across.

[cpeterso]

It doesn't hurt to try emailing the HN contact address [e-mail] asking to remove or edit a post after the time limit.