also, yeah, main thing it's useful for now is you can back up your events (though that may also be buggy, but worth trying) and you can search and delete your events (if clients support it, some do, jumble at least, and forks, you can also do it there)
the relay honors the request, stores the delete event and deletes the referenced events from the delete. the clients might be better to use for general deleting, but likely not all of your relays actually do it. but at least, on the relays that do, they will never let anyone upload the deleted event again
