In fate/go there's this meme that the devs are tracking 'greed', i.e. how much people want some rare reward, the idea being your chance of getting something you

In fate/go there's this meme that the devs are tracking 'greed', i.e. how much people want some rare reward, the idea being your chance of getting something you want from the lootbox system is lower if they think you can tolerate greater spends, because you want it more. Far as I know that's not the actual case, but if I were to make one of these I'd definitely have both the gambler's fallacy and ML-based greed in there. They would both activate only for about a third of the sessions, so there would be plausible deniability. Thinking about this more carefully, though: I'm not sure if actually lowering the reward for greed would be a good idea. Seems to me that you would want to reward greed so that it leads to even more greed.