It may be more difficult to get them to remove a subset of the content on of every capture of https://web.archive.org/web/20220000000000*/https://news.yco...
That becomes even more difficult if you want to have them find (and remove) all comments from all captures on all pages for a particular user.
Noting that you don't have authoritative control over HN, archive may be a bit reluctant to have {random person} asking for all of the comments that {random account} made on all the captures to be removed.
If archive was able and willing to do that (remove content from a random account as requested by a random person), I believe that it would be abused much more than it was used.
Yes, there are permanent risks for past posts but that’s no reason to throw up your hands and give up on any and all attempts to mitigate them going forward.
obviously you are wrong.