Well that's a fair question but let's suppose they both agree to delete ninjastic.space and loyce.club, How about other places? For example web.archive.org I don't think they will honor such requests.
Your statement has some inaccuracy, for website/crawler/archive service under legal company/organization have some legal obligation to honor data removal. For example, archive.org provide guide for removal/exclusion[1] while archive.today have button "report bug or abuse"[2]. They might honor your request, but it'll take some time/effort on your side.
[1]
https://help.archive.org/help/how-do-i-request-to-remove-something-from-archive-org/[2]
https://archive.ph/Urp7B/abuseWell I agree with you to some extent but again you can request, theres no guarantee that it will be removed specially when have posted something but mistake, whether its personal info or private keys.
Yeah copyright or abuse is something else.