Leaderboard ban history
I have friends who got banned for being piloted. Some were huge spenders. Some people play this game for champion collection and to keep his rating high in the leaderboard. These guys treat these accomplishments as their trophy.
I believe permanently removing players off leaderboard is an excessive treatment/punishment. If the ban was related to, say, cheap third party units and the severity is that they gained a huge advantage to the point it boostes their pi with bunch of new champs, i can certainly agree with banning the player and being off from the leaderboard once they are unbanned. But, someone who got banned for sharing his account or piloted who his alliance got rating docked and he got ban time should not be off leaderboard. For players that play this game for the prestige ranking or trophy collection, they will likely quit because they no longer see the point of keep spending real 1000s of dollars every week to stay ahead in ranking. Aside my friends, I know quite a lot of people who dramatically spending less and lost a lot of motivation. Think about it Kabam.