This is my essential problem with Magnus’s actions. What is he going to walk out of every tournament where somebody who cheated at 16 plays in? Is that how we as a community address the problem of cheating? Passive-aggressive gestures against people caught for cheating in the past that pull uninvolved people into your drama?

And only do that after losing... Which is the part that makes him look bad. On other hand I don't think there is a way to look good in this situation. Other than just to shut up and play.

Even better, there isn’t even a claim that he cheated.

All we have is Magnus quitting the tournament after losing and cryptically retweeting Moutinho saying “I cannot say more”.

For all we know Magnus quit because he has a bad case of diarrhea and finds it embarrassing to talk about that.