The "right" way to fix this is to not allow any edits to any post once it has been interacted with in any way - if it's had a like or a zap or a reply. It's the way sensible discussion systems work, and it would make sense to have it do the same here. This is a definite problem, and without any obvious "edited" indicator, it's quite a concern. 

 no 

 Impressive argument you got there 

 number one there is no proof of time in nostr so you could back date an edit

do i need to say more? 

 The x tag contains the file hash, you don't need the time attestation to spot a remote update. 

 note hash, good point but delete already covers this use case

edits are good especially as reactions and can be expanded to others doing them, annotations etc, the issues of edits are really a ui problem not the note schema 

 no