I come here for a couple of reasons. One, I genuinely like helping people out in this department. So many guys these days have no idea of the basics of menswear, and if they come away knowing some of the basics and the reasons behind them, that's one more man in the world dressing a little better on a daily basis. Giving them the reasons makes them realize that it's not just old fuddy duddies insisting on a certain way of dressing shrouded in the mysteries of time.
Two, I like the theory. Clothes have cultural as well as artistic significance, and in exploring and understanding that, you learn what aspects you really value, both culturally and aesthetically. That ties into the last point, which is that I like getting new ideas to improve my own style.