Rule 45: Thou shalt not display more than 2cm of spacers under thy stem, and no more than a 5mm spacer above it.

Damn silly rule , I imagine it comes from trying to copy the look of factory team bikes ridden by full-time pros. The result is wannabe racers who are not comfortable on their bike for longer rides. They can not fix it because they can't uncut their stem, and they are not psychologically capable of fitting a stem which gives the amount of rise they need.