'spam' reviews of poker books at amazon?

[pastabatman]

Just wondering what the deal is with all the obviously bogus reviews that only seem to afflict poker books at Amazon. I'm used to the usual obvious ads for PP and such, but there seems to be a recent spate of just silly ones that don't have an obvious motive. Just look at any popular poker book at a Amazon and you'll see what I mean. I hope they periodically weed out this crap - I usually enjoy reading reviews there.