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.

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

Which confirms what he said?

It's not only about malicious actors within the company; they might end up in some sort of external blacklist scrapped off HN that would complicate their life once they depart their current company. It's best to have 0 private opinion trace on doxxable accounts these days and usual VPN + Tor circuit.

Thank you. This is a good point. I deleted a submission that had my email address. Perhaps they will black ball me but I dont think I said anything that was libel or false. I just shared my opinions.

Seconded.

You are correct that if you work in tech create a throw-away account to discuss anything critical of the prevailing viewpoints. Many holding the prevailing viewpoints are tyrannical and have shown themselves willing to destroy the lives of anyone pointing out problems in their viewpoint.

It sounds like the best thing that could happen to them is to be fired.