I use his opinions as vague guidelines. I personally think he lets himself off a little too much with his view that reviews are always subjective. True, reviewing how good a game is isn't as exact a science as measuring a length. But I feel there ought to be some thought given to what a game is trying to be and how well it does that. I see Yahtzee more as a comedian and an opinionator so to speak. His Extra Punctuation columns are actually more suited to his style 'reviewing' than his video reviews. Those videos are extremely entertaining, no question there. But they have very little to do with what I expect in a review, which is at least an attempt to discuss the quality of a game compared with what that game markets itself to be.
His decision to name BF 3 and MW 3 as his worst games are a pretty good example. I can understand this decision from the perspective of a gaming columnist who dislikes the messages these games have, or the overexposure of this particular genre, or the lack of originality in its gameplay. There are valid reasons why Yahtzee could dislike these games the most. But them being bad at what they set out to do isn't one of them, nor for the inability for people to have fun with them, which I feel is something a review should adress.