Does anyone else notice that virtually EVERY FREE ANDROID GAME is spammed with "redeem this code for free gems in Pocket Empires" comments?! It's to the point where I get angry seeing it.
I'm also starting to think they're in cahoots with the game's developer. Lots of other games give bonuses for referral codes, but ONLY Pocket Empires plagues the Marketplace comments with spam. More people playing = more $$$ made through AdMob.