This happens all the time in real sports. If you get caught cheating you often forfeit your legacy because everything you've done professionally is suspect, especially if you show a longer-running history of cheating or are caught multiple times.
I'm not sure how you can differentiate the punative nature of banning someone from all future tries because they had cheated indeterminately in the past, but not invalidating all their historical record outside of individiaul cases...
I'm not sure how you can differentiate the punative nature of banning someone from all future tries because they had cheated indeterminately in the past, but not invalidating all their historical record outside of individiaul cases...