Some people have no sense of irony.
I guess when you move in social circles that require you to nasally tune out the fetor of unwashed epidermes, undeodorized pit, and fermented patchouli, it's easy to interpret a sign that says "This Protest Needs Soap" as racist.
Oh, and...fourth-year poli sci major? I snickered at the comment on Fark predicting that next year, Mike Cox (yeah, say it out loud) will be repeatedly asking, "You want fries with that?" The sad truth is, though, that he's prime material for a career in academe. Which means the PC wars are far from over.