Today isn't a work day for various reasons, but I thought this was an interesting article on trolling that also pretty much applies to reviews in general. Something to keep in mind:

But sheer experience is also altering the landscape. After you've been through one or two of these hatestorms, you recognize a very simple reality: They change nothing.... Everybody knows there is a vague climate of hate surrounding everything that is distinct in any way. So who cares?