Hanshan on Nostr: Does anyone know what a Rizful.com "vault" is? Apparently they're not letting people ...

Does anyone know what a Rizful.com (npub1jlu…p2kq) "vault" is?
Apparently they're not letting people set up and manage actual LN nodes ATM.

so a "vault" is some abstraction that shares a channel among a bunch of folks for a .1% sending fee?