I am not arguing about this because he is Jason Fried. I am arguing about it because this is bad advice.
I suggest rereading the article again. If you still don't understand what the point is, try rereading again.
Will you learn "something"? Probably.
Will it be a good use of your time? Probably not.
And for your information, my posts here have plenty of upvotes, so do not take the sheer number of 37 Signal fanboys retorting as a sign of evidence. PS, 31 Pixels? Seriously?