In the area where I lived, I never heard anyone discourage psychiatric treatement. I think this is because there were so many Witnesses on Prozac and Paxil.
But, I do remember very distictly the attitude toward "worldly" therapists and psychologists. I heard it said over and over again that "worldly" psychologists would make us begin to believe that the "truth" was too restrictive, too burdensome, and unfulfilling. I remember thinking: "Hell, I don't need a psychologist to tell me that; I already know that!"
I remember at one Circuit Assembly, a speaker started taking jabs at Dr. Phil; suggesting that Dr. Phil encourages youths to engage in unscriptural behaviors. I sat there thinking: "Oh yes, encourging kids to play softball instead of smoking pot, really unscriptural! Why don't you try watching his show and becoming better informed before you go up on stage and make a total ass crevice out of yourself."