I remember something even lamer than a good preview/bad review:
A good review/bad review.
When Manhunt 2 was stuck with the AO rating and effectively canned, 1up.com went ahead and published their review of the game. Lo and behold, they loved it and gave it a 9/10 (before they were doing the letter-grade rating system).
Then, several months later, the game, censored as it was, gets released and 1up.com slams it with a 4/10. Here's the stupid thing: The only changes were heavier filters on executions and one execution removed. The gameplay, graphics, sound, music, acting, control, etc were all exactly the same! They didn't really even touch on the censorship in the 4/10 review! Basically, 1up.com rated the same game twice with two very different scores!
Now, you can no longer find that original 9/10 review on their site. Talk about lame.