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 🤣 

 Haha yea you can lower the amount of people that will see it naturally but if someone wants to find it they will 

 Relays that received your delete request won't save rebroadcasted event  

 Oh. That's good to know. Thanks.