Just for clarity, can you tell me what kind of "doctor" you are concerned about people posting that other need to see?
I mean, are we limiting this to the kind of medical doctors that can perform surgeries - like for people in need of a cephalanalectomy...or those that prescribe much needed "prescriptive drug therapy"?
What about doctors that are "doctors" because they have obtained superior educational degrees? So we can't talk about people needing advice or guidance from their college professors?