I agree that Satoshi must remain secret to the rest of forever since their silence helped Bitcoin to become Digital Gold and is owned by entire world and not just one person with their pride.
While we all want to make huge profits and become rich through bitcoin, but we want the creator of Bitcoin to never use or sell their Bitcoin. We want them to disappear forever simply because that makes Bitcoin more valuable. Does that sound too selfish?
Also, can you tell me what would happen to Bitcoin if Satoshi appeared? Would that cause Bitcoin to lose its decentralized nature and become centralized? No, the appearance of Satoshi will not change anything. Therefore, if he decides to reveal his identity or wants to sell his bitcoin, that wouldn't be such a bad thing.
In fact, that is a good thing, because he has the right to enjoy what he creates.