Advice is cheap and rarely productive, and nobody ought to be taking it without understanding the thought process of the person giving it.
Today Tyler Cowen wrote the following in a post about the economics of advice:
You don’t know what a person really thinks until you hear his or her advice. Along these lines, if you really want to know what a person thinks, ask for advice and he or she will open up.
So perhaps there’s a bit of a chicken and egg problem with advice that I hadn’t previously considered.