HN does not let you do that though. At least last time I asked about it, they sent me a response saying that they’d notify me when it became possible to delete an account. And they provided some reasons for why they don’t delete comments and accounts.

For me I would prioritize the wishes of the contributors.

Also my wish as a contributer is that the threads stay like this. So I can come back later and reread them. I often gained value in reading a linked old thread.

My advice for people not wishing for that, would be simply to stop commenting instead of demanding the site should change.

I know this means someone could still use stylometry to try to reaggregate the posts, but that's less reliable than HN actually telling us that the same authenticated user made all these posts over a decade.

-Twilight Zone Episode: Time Enough at Last-