Not who you asked this from, but in my opinion it has a huge problem of any mistakes being unfixable - either you mistransact or get scammed - taler provides no way to fix that.

I don’t get it – if you could just take it back whenever, it wouldn’t be “money”, now would it?

It would be money, but not cash. I can absolutely take back a Paypal transaction with buyer protection.

And, just like money is a layer built on top of cash, I assume that one could build a third-party escrow service on top of GNU Taler which has this “buyer protection” feature, with the added bonus of not one actor having a monopoly on it – whereas if Paypal stops liking you, you are out of luck.

There are other alternatives to Paypal as well. This feature should be built into the currency instead of just forcing everyone to reinvent the wheel for zero benefit.