Im not sure about you, but when a face is destroyed by a brigade of skiiers making Mogals, pushing snow into mounded lumps with no regard for other mountian users - it gets old very fast.
Mogals are lumps created by Skiiers shuffling sideways down the hill. These lumps can be ridden by snowboarders but accommodate skiiers. Most single ski handicap riders appear to struggle on these obstructions, yet again and again they are produced often in areas very desirable for Snowboarding. (Note: in a period of a few hours, a nice hip was ruined by the entiure bowl being mogaled out, to be honest I can't imagine how many skiiers this must have taken in such a short period.
Some skiiers have even requsted these be banned from the Olympics: http://binezalohar.blogspot.co.nz/2010/02/mogul-skiin-should-be-banned-from.html
Skiiers should at most have designated areas for these acts of Graffiti.