Sounds like someone's trying to create a rumor to keep his subspecialty of interest in short supply and high demand.
As a medical student, you obviously have not been around enough to know what is going on out there, so if I were you, I would make sure I knew what I was talking about before I made any accusations such as the one you made above.
The American Board of Dermatology certifies ONLY 390 dermatologists every year. Contrast that to the close to 100 Dermatopathologists the American Boards of Dermatology and Pathology certify each year. So roughly, there is 1 Dermatopathologist for every 4 Dermatologists. Not every patient seen by a Dermatologist is biopsied. In fact, if you have done a Derm rotation at all, you would know that of the 15 patients seen in one morning, maybe only 1 or 2 would get a biopsy. Sometimes, none of the patients get biopsied at all. Do the math.
Yes, there are jobs available out there right now but if the current trend continues, there will be an oversupply of Dermatopathologists. Like I said, this is the same problem we are facing in Pathology. We certify more than 700 Pathologists each year. Do we really need that many? Unfortunately, there are no data out there that address this issue.
Dermatology, on the other hand, is the way it is (very good job security) because they are very protective of their specialty. Alexa Boer Kimball in Boston heads a group nationwide that specifically looks into the Dermatology workforce. She has several papers published that have looked into how many Dermatologists really are needed to support the demand.
There is absolutely NOTHING wrong with protecting your specialty. Yes, I am very protective of Dermatopathology but I will NEVER spread
rumors to do that.
I stand by what I said earlier - the job market for Dermatopathology might not be like what it is today years from now, so do it only if you truly love it. Because if you are in it for the wrong reasons, if and when the financial compensation falls, you will be miserable.