Truth or Dare, RMP edition

Forbes, leading the way in social science methodology with their ranking of America's Top Colleges, 2013.

Student Satisfaction (22.5%) This is based on student evaluations from RateMyProfessor* (15%), the largest site for professor ratings. This snapshot of what students think about their classes is akin to what agencies like Consumers Report or J.D. Powers and Associates do when they provide information on various goods or services. (CCAP does not score the chili-pepper icons, indicating a professor’s “hotness.”)

So, here's the Truth or Dare: have you ever commented on your or a colleague's RMP page?

[UPDATED below: 11:28 am CDT, 25 July]

I wonder if "largest" =/= "most reliable" ever crossed their mind? I mean RMP *might* be the most reliable, IF there was some reason to believe it got a random sample of the population so that the law of large numbers [am I using that phrase correctly?] would kick in. But has anyone ever studied RMP participation, not just with regard to the self-selection issue w/r/t students, but also w/r/t non-students? That is, as in my question above, how do you control for multiple submissions (you just need a different IP address), profs, parents, sibs, students who weren't even in the course, the guy who lives in a van down by the river, etc., all of whom can comment on the completely open RMP site? You have to fill in the course name and number but that's easy to copy from the other comments.

PS, can anyone help me out? I would be happy to get even a single chili pepper on my page, even if those spoilsports at Forbes won't count it. 

PS2: what the hell do I know about social science methodology, anyway? I would be completely happy to be shown I'm wrong in what I'm writing here.

*Sic. The site is actually named Rate My Professors.

UPDATE: the Forbes author responds to another commenter's objection to using RMP: 

This is something we’ve thought about, a lot. There is certainly valid criticism, as you describe: out of date, disgruntled kids and the like. However, RateMyProfessors has literally tens of millions of evaluations, and when added together, most of these biases wash out — or are relatively similar from campus to campus. And although the correlation between internal evaluations and RMP is not 100%, they are similar. Most importantly, RMP is a sound measure of consumer preferences. As stated in CCAP’s methodology: “When combined with the significant advantages of being uniform across different schools, not being subject to easy manipulation by schools, and being publicly available, RMP is a preferred data source for information on student evaluations of teaching — it is the largest known single uniform data set for student perceptions of the quality of their instruction.”

So, maybe I'm wrong and RMP has a good reputation among folks in the know.