It doesn't. How they express that opinion to others - and especially strangers, in a public forum - has a very direct relationship to the perception of professionalism.
"I don't really care for that myself" comes across as much more professional than "that is total rubbish." In my opinion, anyway.
The agencies that I am familiar with have a code of conduct that must be accepted in order to receive a professional certification.
I agree with you about perception. And I could have worded that better. It was an off the cuff remark.
I'm still interested in hearing when I made certain statements. I'm the sort of person who will admit when I'm wrong, and am happy to learn. However, I think people should do the same if they are unable to support their assertions.
If you truly think I've overstepped the mark shoot me a pm and I'll send the relevant information for you to report to whichever agency is appropriate.