If I could make an armchair analysis of why this works.....it is completely because of the psychological profile that makes a Hacker a Hacker and a Crafter a Crafter. It is the same profile.
Those that are really good at Hacking (programming, developing, reverse analyzing, and engineering) have the same mindset as a person who would be good at carving or faceting or or knitting. These are very patient people who need to be a combo of kinetic and digital/analytical learners.(as are drummers, and photographers and artists alike). So it is no surprise that a lot of folks who love gaming and programming and hacking, also have craft hobbies and are into music, and some are in bands...
I was like that. I was a race car driver, I was in bands, and from the time I was old enough to hold something in my hand I have crafted. I love video games and I am way into music in a big way.
Before computers, folks who were great crafters were also great at intellectual pursuits that required lots of observation analysis of data- like anthropology or archeology. The development of computers in the digital age brought a new interest for this intellectual crew.
NYC Resistor has tapped into the base of the productive makeup of this community group with the perfect balance of Nerdiness.