You are still missing the point somewhat.
You don't even know how many knots I know. What if I said I only know three?
I am not putting stock in knots, per se, but in the statistical likelihood (NOT certainty) that a person who knows more than an overhand knot and a slip knot has had some experience in the outdoors. See OP. The people on this board, for the most part, prove that correct.
Ways to make a fire is actually not bad.
EDIT: I thought of the word: proxy. Knot-tying is not the end-all, but is a proxy of the level of POTENTIAL survival skills.
EDIT: Unless they actually demonstrate, I might change my mind on the fire one. Example: I know all the methods, but I don't KNOW all the methods (practiced and proficient).
EDIT: I was trying to Google something that gets into the spirit of what I said above, and follow this thread, because several posters make the same point:
http://www.deanesmay.com/posts/1168724235.comments.shtml
Ok maybe I am missing your point.
All I was saying is it seemed to me that how many knots you know or not doesn't measure someones overall experience in the outdoors. I guess what you are saying is that it does give you a quick gimpse of their experience.