What is a difference between "wallet level high" and "wallet level infinite"?

We have developed a complex system of ranking wallets. This is our own development, which is only a tiny part of the whole complex. All the technical details and formulas of the complexity of the algorithm we can not tell you, unfortunately, but shotly it looks like this: in "infinite" wallets, coins are used only from exchanges, not from anyone.
The wallet with the money transferred directly from the exchange or from the miner ranks highest. In each new use in system the wallet rating goes down by a certain amount.