A wrong note can be more expensive than a zap, indeed :)
I’ve asked nostr:npub1xtscya34g58tk0z605fvr788k263gsu6cy9x0mhnm87echrgufzsevkk5s to consider adding this to Damus, similar to how one-tap zaps have a short undo window, but I don’t think he likes the idea for posts.
Discussion
I feel like today is a bad day to ask for things.
We have an undo post feature request and a napkin sketch mockup.
https://github.com/damus-io/damus/issues/801
There are higher priority things to fix, add currently and damus is lean on dev resources.