One of the popular free-to-play tablet strategy games I tried a few years ago had a different variation on "bullying", and presumably known to the developers. There, you could use small free amounts of the numerous different currencies/resources/boosts (also purchasable with real money), spend hours designing bases in a multiplayer world, and... then pay-to-win griefers would come along and destroy everything you built, and violate whatever you were actively controlling. I imagine there were a lot of angry/frustrated deletions of the game, and also a lot of impulsive spending of money to be able to rebuild and defend what you'd just created.