In reply to cha1n:
what about scrubbing holds with a brush liberally dipped in chalk? often see this in bouldering videos, def see someone doing it i)n this video & saw the same in the last bouldering video I looked at (paul robinson maybe?.
So why do you need to paint chalk all over every hold while giving it a brush, and surely this is provocative in a region where the locals are trying to keep chalk use to a minumum?
Maybe it's necessary on these very hard climbs, but you see this emulated and next thing you know some doofus will be chalking the jugs on a V0 (in fact i've seen this more times than I care to count).