Slashdot has specific guidelines for structuring and posting book reviews. Anyone is free to write a review and offer it for consideration by Slashdot's editorial staff. I tried out the "Puppet 3 Beginner's Guide" as a Puppet beginner. Then I offered my review as a guide for others who might be (1) considering Puppet and (2) curious about what the author has put inside his book--so they can decide if they want to spend money to buy it or not. You are free to think that somehow rises to the level of a dark, sinister "slashvertisement" conspiracy. And, likewise, I am free to LMAO.