coin revlution has asked four questions at once. I am here to answer the four questions.
1. Why did Satoshi hide his identity ? It was needed to hide.
2. Has anyone seen Satoshi in real life ? Yes
3. Is Satoshi one person ? Yes
4. Or is it a community ? Not a community.

Your questions have many answers but I have given four answers.
If you want to know other answers, you can ask me privately.