But what about the rest of us? Thirty or Forty years of "Pentaxing" ought to be a reasonably good qualifier.
Besides, I personally can't tell the difference in a photo whether it's taken with a 1400 dollar Pentax or, say, a 20 thousand dollar Halfasbad.
And furthermore,
PROFESSIONAL=A professional is a person that is paid for what they do. Qualifications have little to do with being a professional as the world's "oldest profession" is strictly a monetary gain career. An amateur maybe more qualified than a professional but they are not paid, thus they are an amateur
And I'm just thankful that there is a place like Pentax forums where information about Pentax OR Pentax compatible lenses, etc.,etc is reasonably easily found!