It’s amazing that all the guesses on 2+2 are wrong. I won’t unmask him since that’s his decision. (I don’t know him personally, but I know a good Swedish player who has played with him a lot.) He’s not a publically known player at this time, but he has done very well in big head-up games on European sites. He just started playing on American sites.
I have a feeling you will start hearing about in live games and tournaments once he gets a little older, since he likes to play poker all the time.