Why is there a big wave of people giving unrealistic 5 star reviews to "The human centipede"?

I considered watching the movie as I had never watched it before. I therefore went to see the reviews on Google. There seem to be loads of 5-star reviews calling it "A masterpiece" and that they "watched it with their 2 and 3-year-olds, and they drew the centipede in art class and got 300 awards, or that they watched it with their entire family and ate chocolate pudding afterward.

It isn't an isolated event. It's HORDES of reviews. Almost every single review is this unrealistic.

Is this some kind of meme, joke, or trend? I still haven't watched the movie