I clicked on some of the earlier ads, out of curiosity, and I was presented with a zero-information sign-up page. Eventually I googled around to find some scree

I clicked on some of the earlier ads, out of curiosity, and I was presented with a zero-information sign-up page. Eventually I googled around to find some screenshots of the game, to get some idea of what it was like. I suspect that the curiosity about what the game is, and the fact that most people won't bother to poke around, might make quite a few people enter their details into the game, so it's probably not all that ineffective.