Niemann is a known cheater. He cheated tons of times. Whether he cheated against Magnus or not (I believe he did, but Magnus did make some mistakes in that game as well) doesn’t change how I feel about the accusations.
Niemann earned the reputation of a cheater… by cheating… a lot. I don’t care if he was 16 during the confirmed incidents of cheating. That’s well old enough to understand what’s happening. And he’s really not that much older now. It wasn’t that long ago. He should live with the consequences of his actions.