I think in general, fixed riders see a bike they like and have to ride it, even if the size is wrong. I don't know if it is because they are young and tolerant or what... this is usually why the seatpost is a mile above the handlebars, they spend most of the time with their arms straight and hand near the stem anyway. it's hilarious to see them with their track stems and deep drop bars and then always riding on their oury (sp?) grips up top. You can separate the no fashion riders because hey use flat bars and are probably much more comfortable.
__________________
1 Super Record bike, 1 Nuovo Record bike, 1 Pista, 1 Road, 1 Cyclocross/Allrounder, 1 MTB, 1 Touring, 1 Fixed gear