http://blog.stackoverflow.com/2010/09/good-subjective-bad-subjective/
How about adding this to the FAQ?
http://moms4mom.com/back-it-up
Anyone reading this has likely been guilty of using hearsay or extrapolating an answer from their body of knowledge, not out of any malice, but out of a sincere desire to help.
Codifying a principle like this would be helpful, no?