Clean Trade according to Barford

Archaeoblogger Paul Barford shouts imprecations at the US coin collecting community:
http://paul-barford.blogspot.com/2011/08/dealer-ss-clean-trade-means-vaccum.html

Well, Mr. Barford, it now seems appropriate to inquire a bit further into the question of who you are, to presume to instruct US coin collectors or dealers as to what we may or may not ethically do?

I have three questions I would like to ask, not that I really believe there is any possibility you would respond with an honest factual reply.

First: Do you hold a baccalaureate (or higher) degree in archaeology from any accredited university?

Second: What have you accomplished in the field of archaeology qualifying you to pronounce upon matters regarding numismatic science?

Third: Apart from your brief archaeological career, what qualifications do you claim, to represent yourself as being an expert in numismatic science?

Fourth: If you do not (as I believe) have significant demonstrable qualifications in the field of numismatic science, why do you venture to assert that you have any right to criticize and instruct those who do have such significant demonstrable qualifications in the field of numismatic science, as to what they may or may not ethically do?