"It has never been standard procedure to fill out an application with credentials before posting here. Do you have a list of everyone's credentials here?"
I have only what someone posts on their freeppage or discloses in a discussion. I believe I can ask what someone's credentials are, as long as I do it politely. They can then choose whether to provide that information or not.
What is germane is the credentials of a referenced SOURCE. That of the POSTER is irrelevant.