He did tip a lot of satoshi bus dude. Also drove up BCH tx and caused some excitement around memo. I can't see his aim if it was a scam ?
He was the one impersonating users on Memo at the beginning, getting tips from legit users on his fake/multiple impersonating account. He tipped back because he feel bad about it.
The logistics/creative energy it would take to pull off what you're describing is blowing my mind tight now. I've gotten a butt ton of tips but nowhere's close to what he tipped me.
My only point here is that I don't think your theory is feasible or likely. What would you say if he sent the 1 BCH to somebody else? That it's his own sock account?