its called inflation, they got it not with "legal" way, ads like offerwall based on many things, market, currency, exchange etc, and the more time consume and money, the more you will get, they get profit from your money also your playing time but ,so hard to say most of them get a lot of tokens, but if us based players, i do believe it.
so lets say, some hacked and get instant, you think nordeus and offerwall get something from their offer? nope...