Sounds like a coinjoin on ln.
What is a lightning prism?
Basically, it's a way of splitting payments or turning one payment into many. A prism could be identified by something like a note (this is what nostr:npub1arcweuxy0zkdcg08sljh058qp02ytrgnpzh4csa3ar42szyfgrpsw6ggtw) is doing.
However, there are other ways to implement prisms. A prism could be represented by an LNURL or even a BOLT 12 offer. Whenever, say, an offer is paid, the full amount paid gets split and sent out to each member of the prism based on each member's relative split.
Checkout https://roygbiv.guide to see a multi-author blog that utilizes BOLT 12 prisms.
$boost #following
Discussion
There's not really any obfuscation. And in the case of $prism you are still making individual payments.