It's case by case. I seen some obvious fake reviews that you can tell have nothing to do with the game. I sometimes call out bad reviews and mentioned how the game really plays.
Now what is meant by "bad review"... bad quality of the review itself or a review speaking bad about the product being reviewed. The term is always confusing...
And your post can be interpreted in multiple ways... A review of a reviewer who didn't understand the product they were reviewing, or a clear obvious fake only written to either give a game false praise in order to get more downloads/buys... In the case of self promotion the latter seems most likely. Fake reviews are often easy to recognized by not mentioning anything content-wise that makes the reviewed product unique, like story-line stuff for example. I've also seen fake reviews (plus ratings) in a way to give a game a bad rep, as a kind of trying to break somebody. Both are equally terrible in my book .