It no longer really matters who Satoshi is. He doesn't participate in Bitcoin development. He isn't that wealthy, yet at least.
Nor his character assassination can affect Bitcoin much, while it could a few years ago. He was pretty smart staying anonymous, he realized he would be targeted and smeared.
He's potentially worth a _lot_ of money and could have a heavy hand in swaying the bitcoin market for the worse if he wanted to.... or if someone else was somehow able to force his hand
Nor his character assassination can affect Bitcoin much, while it could a few years ago. He was pretty smart staying anonymous, he realized he would be targeted and smeared.