I usually wear tees and jeans, but I recognize that formal wear has a place.
I'm surprised you made such a snarky response, when you said something very similar in another thread:
"I think, that as techies, we are in a unique situation, as far as intellectual development is concerned. The vast majority of the population can't appreciate technical phenomena because it is culturally viewed as "too hard" or "robotic" or "blah blah, boring". We, OTOH, actively refuse to engage with humanistic pursuits, but not out of any perceived difficulty so much as discomfort with the pretensions that come with "cultured society"."