[xiaoma]

Yes, I've encountered this argument. Are you aware of the legal trouble a school misrepresenting its numbers would be open to?

It's extremely useful to include self-reported salaries and hiring stats. That's actually one of the key pieces of information I myself was looking at. List the stat and link to or summarize or link to their explanation of how it was calculated.

As for your own independent surveys, they are almost certainly far less accurate than that of the schools themselves. Considering the effects of selection bias on top of those of the small sample size you mentioned before I suspect they're essentially useless for someone making a decision.

Similarly, what good are "overall stats" that average the results of random respondents from world class institutions, low-end operations, experiments and all kinds of other projects? It would be kind of like looking at "overall stats" for a bucket of participating businesses who had taken money from YC, Techstars, unknown funds, crowdfunding, banks or their parents. That would yield some data, but the data wouldn't be useful for an entrepreneur actually considering taking on funding.

I don't think bootcamp review sites (except possibly Yelp) "help guide the conversation". I think they tend to mask the huge gulf between the several schools that a fantastic investment and the many more that aren't.