Distilling clothing down to its original "purpose" and saying "don't use it for anything else" is naïve and dismissive of the human experience. I suppose the author also doesn't keep any art on on the walls of his shelter and eats nothing but flavourless meat and vegetables?
I realise that a lot of people, and programmers especially, just aren't that into clothes, and that's fine. But that doesn't mean you /have/ to be bland. I love how the piece ends by essentially saying "wear the same uninteresting clothes every day, blend into the crowd, and THEN enjoy as the mundanity of your life somehow decreases." I hope I'm not alone in thinking, "Wat?"
If this is the solution to a problem people are having, it sure is a depressing one.