Be warned, my current understanding of LSATs is sophomoric. In simile, it's like buying a digital ticket to a website with lightning and then gaining access to the website with the digital ticket. From https://lsat.tech/introduction:

The beauty of them is that they are theoretically more straight forward at a UX level while enhancing privacy for the user and making backends more stateless (i.e. backends don't need to build a ticketing system from scratch and store a database of tickets, etc.). If you have an LSAT enabled client this whole system as a user becomes one click to pay (and possibly enter a recurring or regular payment agreement), then with your client continually access the resources you paid for - without ever logging in, entering credit card secrets, etc.

If there were a great LSAT browser plugin, for instance, SN could easily avoid being a custodian of user's funds by users permitting me via an LSAT token to charge you 1 sat when you post/comment/upvote. Users wouldn't even need accounts in a traditional sense - you would authenticate yourself with this LSAT token. Although, I'm not sure if LSATs are bidirectional in their current design - so users might still accumulate a balance on the site.