Thanks Max, but how many normal users do you think are able to run your scripts - and how many are willing and able to invest the time?

I believe in the future all wallets will by default use payjoin or similar tech so you don't need to even think about it

True, not many. But it's kinda like pay join, only a small subset of users has to do it in order to get a huge privacy benefit for everyone. And this will be in the UI eventually.