Great article with some excellent examples to prove your point. If only all the players understood the importance as much as the GM we wouldn't be in this dilemma. So easy for old hands to want to help out...or the know it all that wants to show, well, that he knows it all even though he already fell for the trap and is unconscious.
"So, you’re an evil thief who freelanced his way through life, bucked all thieves guilds (despite the pressure), and worked more outside the main gates of the nearby city, favoring breaking and entering of farm houses while their occupants were out working the farm during the day? Now you have such a local reputation that you want to run away and seek employment through adventure…"
Okay, that being the case I lay out the facts to the PC: "You raised yourself and bucked society so: you can’t read."