Three kinds of "reviews" to avoid...
"I think the product photo looks really cool, and I'm gonna buy one if I ever get a job!" -- The majority of user-generated reviews have owned the product for less than a month. Of COURSE they think it's great: it takes longer than that to realise you've been conned by slippery marketing.
"I m a journalist with "Well Known Newspaper" and my Editor has given me three days to install this product, test it, and write the review. The manufacturer says I can keep the software if they like the review. But no, I don't use this kind of software in my daily job, so I really have no clue what I am writing about." As a former journalist, I received such "opportunities" more often than I care to think. But sadly, none of my 'reviews' were ever published after I included a disclaimer similar to the above :-)
"As a Senior Editor for "Well-Known-Website" I can tell you this product is the bee's knees. Joe Sleaze, Marketing Director for Universal Widget, says the product may work after it is unpacked. Mr. Sleaze said considerable usability testing had been conducted. "Seven out of the 12 users we tried it with were able to get the product to display the splash screen," Mr. Sleaze said. "Less than half of our selected user testers had a PhD in Computing Science. It's a re-written press release. Read the Microsoft Reviewer's Kit for their latest product, then count the number of direct quotes from it that you see in the national press.
At least Paris Hilton has been rated by multiple users who have actually owned the product... As well as hundreds of thousands that haven't...