In general I try to avoid internet squabbles with fellow industry members because I think it's bad form. But I will toss out a few thoughts on the concept of unearned authority, which is something that arises beyond these walls as well.
In any field, authority should be earned and expertise should be demonstrated or documented, and not merely claimed, nor carelessly granted to any claimant that comes along. For instance, if you need to have your website translated into French, you might ask someone claiming expertise to demonstrate, or provide documentation of, his expertise before you hire him.
Note that claims (no matter how numerous and impressive) are not proof, and may not even constitute evidence if there is no true source cited or reference provided. Statements such as "So you want proof; just ask them"; and "I have proven this more than once"; and "They know that I can create a superior end result... I do not have to prove this anymore. They know it!!" are attempts to elevate a mere claim to the status "proof" when it does not even qualify as "evidence". These are pretty clear indications that unearned authority is being sought.
These sort of statements should set off our BS detectors. If your little voice inside says "something's not right here", pay attention to it. Actual proof is hard to come by, but at least expect (preferably independent) evidence and/or some sort of demonstration of claimed expertise before accepting someone as an earned authority in any given field.
Duke