In the LW community apparently most people don't know how to dress well. I read some testimonials, and part are in some sense about achieving goals like been more sociable, and not to be a anti-social nerd.

There a re skeptics too, however for me the effectiviness of (decision theory + psychological tests) is clear, only in the few comments a read. Maybe they are overly optimistic, but the feel of improvement and the evidence in their professions indicate that the cost/benefit is superior of the most camps/groups out there.