If you want people to actually pay attention to your review, you might not want to start it out with a snarky comment directed at a large portion of your audience.
And yeah, I know you think it's okay to do because you're "right" and all, but I'm just going to point out that I went into this review interested in what you had to say, got pissed off at the first paragraph, and didn't read further because I no longer cared about the review because I was annoyed with you. And while I'm sure you don't care about how I feel, I'll bet you do care if people read your review. Maybe you'll get more of them to do so if you don't start it off by being rude.