Firstly, what does he know about dance for him to actually judge one? I know Shilpa is no dancing diva herself, but hey at least she is pretty and nice, and gives out balanced comments.
Secondly, his jokes are not funny, they are borderline rude.
Thirdly, the show's name is NACH Baliye, not ENTERTAINMENT Baliye, he obviously doesn't understand this since he goes around giving more marks to Rahul Mahajan, and disses couples who danced way better than Rahul-Dimpy.