I reviewed DMG II a few weeks ago after I initially purchased it. I found my review was deleted when I went back to look at it. Why? I gave the book a 4 out of 5 stars and an honest appraisal that was pretty honest and positive, I thought...oh, I did buy it from Paizo, BTW.
I resubmitted it again anyway. When I looked at the review, it said Rating (4 stars) based on (0) zero reviews...??? Yes, sounds like a technical problem.