Earlier quoted context omitted.
From what I understand art world folks very well know who Banksy is, but I don't think such is the case for the tech world and Satoshi.
Hardly just the art world. That he’s Robert Del Naja (aka 3D from Massive Attack) has been semi-public knowledge for a long time.
https://en.wikipedia.org//wiki/Robert_Del_Naja
Out of curiosity, why do you believe it's not Robin Gunningham?
That seems to be what https://en.wikipedia.org/wiki/Banksy suggests, and the reasoning seems sound.