Look up the word and watch. If anything's pretentious, a lot of times it's the cheesy "I learned something today" or hamfisted morality thrown in at the end of various other series. I guess a few episodes of Kaiba have followed that pattern so far, but not more than anything else.
Some of the fans of the show can be pretentious in some other ways, around here. But not the show, really. Feel free to enjoy another anime and another thread