How does Satoshi's anonymity affect the trust of users and investors in the Bitcoin network? Can this anonymity be considered an asset or a drawback for the legitimacy of the cryptocurrency?
An asset definitely. Satoshi's anonymity has proved substantial to Bitcoin growth so far so much that it would be very unnecessary for him to reveal his identity now that Bitcoin has already become a global movement bigger than a one man's parade. I see how sentiment currently works in Ethereum. Vitalik does anything that doesn't align (sell ETH to find his personal endeavors or attend an event to sing, etc), price goes down. We don't want the same experience with Bitcoin.