Baseball and WoW

No, I don't know what the connection between baseball and World of Warcraft is either. I only got this mail from Amazon:

Dear Amazon.co.uk Customer,

We've noticed that customers who have purchased "World of Warcraft
Official Strategy Guide (Official Strategy Guides S.)" by Danielle
Vanderlip have also ordered "Baseball Hacks" by Joseph Adler. For this
reason, you might like to know that this book will be released soon.

And here was I, under the obviously mistaken impression that WoW players wouldn't go anywhere near a sports field. :) On the other hand this might just be another example of artificial stupidity. For example if you search for a game strategy guide on Amazon, you get an offer to buy that book in a bundle with ... another strategy guide, and not as would be logical with the game itself.