power through a copper on copper connection will oxidize over time, which will then result in the the 'crackliness' you get in analog audio, crackliness applied

power through a copper on copper connection will oxidize over time, which will then result in the the 'crackliness' you get in analog audio, crackliness applied to a high speed data signal = fatal flaw. It works as a hobbyist solution, but it's a long term disaster.