I’m thinking of leaving a FB group called Chifi audio reviews because daily there’s people asking the same unfounded questions about what cables sound the most transparent, or tame treble, or increase detail etc. Sometimes it’s the same thing but about DACs which I almost understand (shitty outputs can make headphones and IEMs sound thin and lean but I think that’s just a matter of bad designs). Burn in is another such culprit. Do just a couple of minutes of searching online and you’ll be presented with facts and reasoning telling you it’s bunk.
It drives me nuts, it’s like having flat earthers and scientologists everywhere in the hobby everywhere I turn. It’s slowly driving me nuts, lol.
Analog signal? Sure. The quality of connections and how well the contact is made as well as the length and type of wiring, you could build an argument for the signal being affected. It might not be an easy or practical argument, but it could be done
Digital signals? Nah. It’s above the on threshold or it’s below the off threshold and that’s it. You could maybe got hard about how the signal on-off changes might not be perfectly square which leads to the transition from off to on or visa versa being delayed, but that’s a flaw of the receiving end and where the clock reads the wire.