I don't see it on Amethyst, Snort, Nostrudel, or Primal. What client are you using?
Discussion
Amethyst
What relay has it? I don't see it. It won't load.
Share it. It is still on njump. Njump also shows the relays it's on.
If I visit Nostr.band it doesn't show up there either for me in search, but njump.me says it exists there. I can't search for it though.
My guess is relays actually do respect and delete the event, but njump does not.
But then it shouldn't show for some people on Amethyst so it must be somewhere still. Maybe some other relay that collects from these relays before deletion 😐
Yea it’s theoretically impossible to delete anyways
It's going to most likely exist somewhere, but you can get things 99% deleted, which means you can't delete because people could always just rebroadcast the note again from the one place it exists. For the most part, that won't happen, unless you make bold claims that you can delete something. Then everyone will rebroadcast it 🤣
I'm seeing it on amethyst too
This is what I see. 
I can read it in your quoted note, open and in the feed, but it won't load to when opening that specific note to show the relay icons
Maybe you're seeing cache then? Dunno.
Looking on that njump link, I am hooked up with band & nowhere, so that's probably it
try nostr.at/ncode1a2b3c... ;)
Njump fork?
I can also see the quote post on Amethyst, but if I tap on the original note or search for the note ID, it can't be found.
How it displays in the feed:
How it displays when searching for the note ID or tapping on the original note:
That's really odd. And I'm confused.
If I recall correctly a user can essentially "undelete" a note if they overwrite it with the exact content. My initial thought is that maybe the repost has done this in some way in order to recall the quote post. I'm sure someone will chime in with more details.