Of course Hal Finney is not
Satosi Nakamoto... but Satoshi Nakamoto may be :p
One more discussion why not bring it on I love to discuss Satoshi and Bitcoin

Well you can't prove or disprove it with certainty that he was not Satoshi..... but yes we have more evidences that he wasn't Satoshi.
We know Hal Finney was involved in the cypherpunk and cryptographic communities well before the release of Bitcoin. Also if I say so (may be someone won't like it) but for the matter of fact it's true that Hal Finney was a highly skilled cryptographer and developer, and he acknowledged in his early interactions with Satoshi Nakamoto that he didn't have a full grasp of certain aspects of Bitcoin's design. Also Satoshi Nakamoto stepped away from the Bitcoin project in 2010 but Hal continued to work on Bitcoin and communicate with the community (until he fell ill).
The most solid evidence that he was not Satoshi is from himself. He denied being Satoshi in multiple posts and interviews before his passing and it is a significant piece of evidence against his identity as Satoshi.
Today, Satoshi's true identity has become a mystery. But at the time, I thought I was dealing with a young man of Japanese ancestry who was very smart and sincere. I've had the good fortune to know many brilliant people over the course of my life, so I recognize the signs.
While most of the points provide evidence against Hal Finney being Satoshi Nakamoto, remember, the true identity of Satoshi remains one of the great mysteries of our time. Who knows, maybe one day a clever AI will figure it out or Satoshi himself will emerge from the shadows with a 'ta-da!' and a wink. Until then, the legends (both Hal and Satoshi) lives on.