Well, he was probably totally fed up with being analyzed by anyone who picked up a newspaper and decided they should have an opinion. If I were him, I'd go into a Buddhist monastery (nunnery?) myself after the last few months.
By the way, Siblet's team mate here has a pair of Ligety's skis, with his name on them where he labeled them as his. I'll have to find out for which event they are, probably a speed event I'm guessing as one season Siblet used old skis from Libbly Ludlow for her SG.