All he had to do was sign the early private keys and he failed to. Of course there is speculation that Dave had those keys and they are lost. CSW was definitely around those early bitcoin guys but if he really had a role in the creation remains to be seen. I'll admit that I do sometimes watch his Youtube videos though.
Signing does not do anything except showing access at the moment of signing, aka Troll prove.
Possession of a key is not evidence of ownership. It was never the intent of Bitcoin. It is the intent of people like Greg Maxwell, James Donald, and others who seek a system that acts outside the law. If you have a stolen asset, possession doesn’t make it yours. It applies to Bitcoin equally. If bitcoin is stolen through stolen keys, they do not give the receiver ownership. They do not act as proof. In monetary law, money is fungible and transferable only when it is exchanged without knowledge of fraud or malpractice and for good consideration. It is critical. To be money, Bitcoin does not rely on the mere possession of keys, which is the aim and desire of those seeking a new version of Liberty Reserve coin or e-gold. There are some who will tell you that the mere possession of a key is definitive evidence. They are avoiding the rules of evidence and courts, and seek to alter their nature. They seek a precedent and to change the narrative to one that favours a more anarchist approach.
I will sign after I have definitively proven I created Bitcoin. Not before. The problem with the so-called “experts” is that they have no expertise. They seek to create a narrative and change reality such that it aligns with their beliefs, and believe that doing so will make them experts. Bitcoin is not bit gold, and it never will be.
‘Doing anything you want’ is not a system that is free. Freedom comes within society, and it comes with rules.
https://craigwright.net/blog/bitcoin-blockchain-tech/shades-of-black/