I can only say that the finale turned me off. The other participants in the show may be as mean and dislikeable as ever, but that doesn't say much for Nick.
As far as I can tell, what turned me off was primarily Nick's vindictiveness, and whatever evoked it, vindictiveness is imo never an admirable response. Sometimes it can be understandable, but it's rarely a good or honorable thing. I wouldn't want to identify too much with someone else's and I don't see why some degree of understanding should lead to celebration of it. What Nick did, under the best interpretation, was rather repugnant. Two wrongs don't make a right--and I would doubt that anyone who acted that was was really very happy with himself; because that sort of hurtfulness toward others really hurts you too.