What's interesting is how quickly you run up against scam-walls (as someone who doesn't like paying for virtual currency outright, anyway). I can easily see how users fall for it, even the smart ones who try to pick scams that don't require credit card or mobile numbers.
As a user, though, it's really annoying to keep running up against the same things in every single game out there. Want more acres of land? A bigger cafe? Better weapons in Spymaster? The very omnipresence of 'give us your mobile number/credit card and we'll abuse terribly small print to charge you money for things you don't want' is making them almost acceptable, because people are used to seeing them.
As a user, though, it's really annoying to keep running up against the same things in every single game out there. Want more acres of land? A bigger cafe? Better weapons in Spymaster? The very omnipresence of 'give us your mobile number/credit card and we'll abuse terribly small print to charge you money for things you don't want' is making them almost acceptable, because people are used to seeing them.