We make a big stink about how we climb UP a route: onsight, didn't yard on gear, didn't bang in pins, day packs up a grade VI in 45 seconds c2c, blah blah blah..but we almost never talk about the cleanliness of our descent. Leaving behind tat, nuts, cams, and pins for rappel anchors seems completely okay, but isn't the "ethical" self-congratulatory jerk sesh awfully hypocritical if you leave a bunch of shit behind on your way down? shouldn't the descent be just as carefully scrutinized as the ascent? how many climbers take the time to tidy up rappel stations, leaving only a single piece of cord or well-jammed nut?
yeah, I understand there's often no choice, that you just have to leave behind junk if you wanna go up in the first place. But sometimes there are alternate descents that, although inconvenient (and therefore won't allow you to spray to all your buds about how fast you did a route) allow the climber to descend without leaving a trace.