Finally, I took out some time to write that article on authenticity of such web hosting review sites.
And, I must confess that whatever I discovered was pretty shocking. Basically, most of such hosting review sites are affiliates who passively promote a set of hosting packages, without scrutinizing the quality of their service.
But, I don't mean to say that all the web hosting reviewers are affiliates and provide biased reviews, yet the sad part is that majority of them aren't really genuine. So, I'd strongly advise everyone to do their due diligence before choosing a web host rather than blindly going by recommendations given on the web.