Yes, as gregorio states, these posts were not serious. The intent was to hold up other members of the community to "ridicule." This provides him and certain other folks with a great deal of satisfaction. If you want, you could make a few claims about cables or some other tweaks to give them more to work with. Sort of like giving a Playboy magazine to a 13-year old boy.
Perhaps what we need is a Sticky for Cable Believers only. It could be called:
Cables Make A Difference: For Believers Only
It would be a place for Believers to gather and converse freely with like minded individuals. That way, if you don’t believe, you don’t post in the believer forum and if you do believe, that’s where you post. End of problem.
Then, when the OP asks a question like: "What's a good place to buy a replacement cable for my headphone?”, the Believers can just reply once with a link to the sticky and the people who want to address the OP's topic can continue to do so without controversy.