Wasn't it regarded as being a bit "odd" when people were giving away loads of wonga ?
Something similar happened with The Simpsons Tapped Out (a wonderful video of that is
here). whereby people were buying promotional cards to increase their donut count, oblivious (or couldn't care) that the whole thing was a bit of a scam...
I did my duty, of course, and going around with "told you so"...