It would be nice if we could all try and make some headway on this topic. I do believe that with a concerted effort on all our parts we could unearth what it is that causes this effect. The people that claim to have noticed this effect have, I assume, more experience working with cables in audio than all of us ( I could be wrong) and if there are several, unrelated, individuals who report this 'phenomena' then surely this is grounds enough to take it seriously and afford a little time in researching what data there is out there already.
In my opinion arguing about it is of no benefit to anyone, we are aware of each of our standpoints so lets progress. Irispective of what you think finding out the truth (or at least most of what is documented on the subject/profesional opinion in the industry) is what each of us should be trying to do.