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Let's not mix apples and oranges.
I personally saw Vigoboy, and at least 10 other people saw him too, but that's not the point right now.
Vigo was specifically accused of two things: that other people played instead of him and of maphacking. As for the maphacking, the arguments presented so far are not very convincing. To be more precise, it's just a suspicion, which is definitely not enough for a verdict, considering the presumption of innocence.
The other issue is more delicate.
Here's how it goes: a person is playing, streaming, and chatting. And in the chat, they are told, "What if...?" Has this happened? Yes, it happens all the time, at least in every third game. What is this? A hint? Well, yes, it's a hint. But as soon as streaming appeared, these hints appeared too. The situation is similar here. Yes, sometimes, perhaps, someone near Vigo was thinking out loud. Sometimes, and it's not even certain that it actually happened (and in streams, hints pour in from the chat like water from a horn of plenty). So what? Should we ban this guy for that? Who genuinely loves the game, for whom this is not just a hobby for a couple of years, but a real passion? Give him a probationary period, don't count his games towards the ranking, just observe. You could ask him to stop streaming, why immediately resort to a harsh ban?
As for Vitalik, you just need to remove that label, and that's it. No one needs it. It seems like this was discussed, and it seems like they came to a consensus. He's not guilty, and the statute of limitations hasn't been repealed.