Re: perfume eating skin - a myth?
Personally, I've tried extending the longevity of my fragrances in a myriad of ways. Layering with matching or complimentary body lotion; layering with matching or complimentary body sprays/mists; applying to a variety of different body areas (not exclusively "pulse points"); using different methods of application, from splash bottles to rollerballs to sprays; ad infinitum. In most cases, all extra effort is for naught. My skin does not seem to project noticeable silage after 1 hour of application, and often the scent is completely unnoticeable - even at "nose to the skin" range - after 3 - 4 hours.
I wouldn't be at all surprised if environment was a factor, as I live in the notoriously arid Southwest where dry(er) skin is nearly unavoidable. That being said, on rare occasion a fragrance will project very strongly when I least expect it. This happened the other day while wearing Pacifica's Tibetan Mountain Temple, which is usually one of the typical "gone in 4 hours" varieties.
So to sum up, I don't feel that the "perfume eating skin" is a myth or a commentary on a person's fail-ability to detect scent. To suggest such a thing does smack as an insult, though I don't think it was intended as such. But for some of us, it's simply a reality.
. I've been reading this thread, and staying out of it, but have you considered the fact that most of your perfumes are inherently light?