The main issue I was thinking of is using these in other protocols. You couldn’t really use these to unlock content or accept a DM, etc.

It seems like you would have to take extra steps to get a receipt of *real* payment. You would have to initiate a swap with a trusted mint. With a lightning zap i know my node sent it so it’s real right when I receive it. 

 I do see what you are saying here.  

 point, but wouldn't the swap be pretty fast and cheap though?