Just out of curiosity, how often do we think KC sees a free ascent these days? Once a weekend? Once a month? Once a season?

As far as the fixed gear thing goes, seems to me KC is a borderline case. You sure wouldn't want to leave fixed gear all over a 10 or 11 you were working on, unless it was EXTREMELY obscure; and you could certainly be forgiven for leaving it on a 12 or 13, especially if it is relatively out of the way (say, Twilight Zone, Project X). In a borderline case, it seems best to be polite: if you're the climber, don't leave your gear all the way down to the ground; if you find the gear, cut the other guy some slack and leave it untouched. But whatever...