Can't you just accept that some people simply don't like the look?
I own a a single silk tie and one nice dress shirt. I never wear them unless business needs require it. I don't even have a suit that still fits. I'm normally dressed in a T-shirt/collared shirt and either jeans or slacks -- IIRC, that's what I got married in! My clothes fit properly, they're simple, (I usually only wear solid colors) clean and comfortable. As far as I'm concerned, I'm well dressed, if informal. What exactly is wrong with that?
* You used the language of "better", not "different", of "honest self-improvement" and "challenging yourself", leaving implications hanging about people who decide not to do these things
* You literally say you can't see an "excuse" for developers not to dress differently.
* "You're building the future, so dress like it" (also note that in addition to being condescending, this is also an ineffective rhetorical strategy, since it begs the answer "we are dressing like it, dude")
* You argue that most hackers can't wear their single most common article of clothing because of body type.
You reference _Put This On_ twice in your post. _Put This On_ is, not to put too fine a point on it, a hobbyist blog. These are people who spend their weekends at thrift shops hunting for specific brands of clothes. It's also a blog that routinely finds ways to write takedowns of celebs who clearly spend time and effort dressing themselves; the blog advocates a distinctive style. I read and enjoy _Put This On_ (they're great writers), but you might concern yourself with the fact that you're effectively inflicting your hobby on other people.
In a previous life, I was a consultant/contractor at a very large enterprise. Despite the whole outfit being business casual, I wore a suit every day of the long span that I worked there.
It had a dramatic effect on the people that I worked with. It changed the conversation. It was at least faintly intimidating to those I worked with. Now, times are different, and we are
So there are some occasions that I would do it again. (I mean besides my nephew's wedding.) But amongst developers, it will send the wrong message. It will make you seem like one of the Ross Perot employees where imagination was selectively bred out.
Wearing a suit in most circumstances today will suggest the opposite of technical competence.
I own a a single silk tie and one nice dress shirt. I never wear them unless business needs require it. I don't even have a suit that still fits. I'm normally dressed in a T-shirt/collared shirt and either jeans or slacks -- IIRC, that's what I got married in! My clothes fit properly, they're simple, (I usually only wear solid colors) clean and comfortable. As far as I'm concerned, I'm well dressed, if informal. What exactly is wrong with that?