I used to think Zizek was just an annoying hack, another "radical academic celebrity" but I've since come around to appreciate him. He mostly seems to troll the feel good Left and isn't shy about stating the obvious, that any real political change (regardless of your ideology) is incapable of happening without a good strong dose of authoritarianism. I've seen a lot of Marxists try and discredit him by pointing out that other Slovenian Marxists think of him as 'right wing'.