I was mining BCN late 2012 - in fact I recently found this thread and luckily got my wallet open. It's all working like a dream, thank you very much.
I don't have any proof, but maybe he has.
He constantly jumps on the Bytecoin thread calling everyone a liar and posting FUD just to try and support his Monero clone.
If you or anyone can provide verifiable (from credible identified third party unaffiliated with the project) proof that Bytecoin existed in 2012 then I will not only retract every negative statement I've ever made about it but I will abandon and denounce Monero immediately. It won't happen because it doesn't exist.
This is a high bet, smooth.
It's one I take too. And note that we're specific about it being credible - the means that a purchased forum account won't do, and if you're paying off a public figure you'd best make sure his buddies won't nab on him.