Sounds like a few folks here have purchased "audio quality" switches and their ego is bruised. No one likes to know they have been had. That is just being human.
I have provided links to the technical description of how IP and Ethernet work. That is my evidence. It is pretty clear it is impossible. All you need to do is to read it. No viewpoints. No opinions. No hear-say. Technical how it works. IP does not use magic. V64 MODEM error correction looks like magic if you want to dig deeper. But it is actually just math. It even makes GCR backwards error correction look simple.
I have also repeatedly challenged the "believers" to provide any evidence of how a working to spec layer one can effect the audio. Any hind of a path. If there is something we do not know, that would be important. Nope, Only get attacks. Claiming a switch makes a difference is the extraordinary claim so extraordinary evidence needs to come from that side, not the side of established science.
As I have not purchased such snake oil, I have not been damaged, so I would have no standing in a suit against said fraudsters. At least that is what I learned in the basic business law classes in college.