Rate My Institute Teacher

Any teacher worth their salt as a teacher desires constructive feedback. Students desire to leave feedback, often anonymously, especially if it’s negative. From early personal experience, I know it’s hard to get sincere and thoughtful feedback when spontaneously asking the question face-to-face. Thus was RateMyProfessor.com born, in which students can rate their professors on a variety of characteristics and provide a brief description.

Assuming one can get an accurate enough perspective to be useful in decision making, would a similar site be appropriate for Institute or Gospel Doctrine teachers, in which prospective students at a University or prospective members of a ward could take the measure of a teacher ahead of time? Why or why not? How would it be different from the informal ward shopping LDS inevitably do when moving?