Okay. I'm seeing comments like this even more now. I think I'm on to you...

You're a bot who takes the top comment(s), reposts it, with a link to Amazon products tacked on.

That's right. Gotchya.
 [relating to  Earth Science](http://www.amazon.com/gp/product/0136020070?ie=UTF8&amp;tag=polidebanews-20&amp;linkCode=xm2&amp;camp=1789&amp;creativeASIN=0136020070).