Yonle on Nostr: You may configure the relays to store or fetch your content. Anyway, How about you ...

You may configure the relays to store or fetch your content.

Anyway, How about you host your own relay? That way, you could guarantee that your event is still here.

Additionally, if you want an bouncer to do it's job to receive & broadcast your events across many servers, Maybe my project would helps you out:
https://github.com/Yonle/bostr2