"Someone did a CoC violation" is just a way for an org to say "someone was an asshole to such an extent it was driving other people away or getting us into legal trouble", with the manner of assholery defined in the CoC. 9/10 times it is nothing sinister.
Of course right now we just don't know what happened.
Also this is not some russian mafia drug deal gone wrong, it's nerds disagreeing on the internet.
Not even that, since so many CoCs are vague enough that someone unprincipled wielding them could be using them for petty interpersonal disputes. Unless I already have reason to trust the accuser, when I see "CoC violation" it tells me there's drama but it doesn't tell me who the asshole is.
If you look at how I worded my comment, you'll see I didn't jump to any conclusion. Only you have, apparently.
(edit: Also unsurprising to see your account is two days old)
Unless you have an infinitely wise and patient dictator who can just say "you're an asshole, you go" and always make the right call or something.