A: Back is Satoshi, mimics X (who has many other reasons to be Satoshi) for hundreds of emails.
B: Back isn't Satoshi, X's stylometry matches Satoshi.
Clearly 'Satoshi' intended from the outset to obfuscate their identity.
Given that axiom many behaviours become probable, including referencing a true identity (or three*) in the paper.
* Satoshi could, of course, be Yet Another Nicolas Bourbaki with a shared voting key of sorts; that's an easy explanation for relative silence over the years if a group cannot or will not reach consensus on action.
And to me, the whole Halfin-key signed message thing that Shkreli posted kind of seemed to point away from LeRoux due to the suspicious circumstances.
1) Sit in a prison in NJ until he is 70+ years old.
2) When he is released, immediately be deported to the Philippines where he will face another trial, and get thrown in jail for the rest of his life.
If he had $50B+ in BTC, why wouldn't he break out of the not super secure prison in New Jersey, and go live like a king in Indonesia or something?