What measures did he take to stay unknown?
Don't you think that I anonymous to you.
I guess, Satoshi is not greedy , Satoshi never touched the coin when they are at ATH. Never want to take the fame personally.
I do not think such selfless person's exists in today's world.
My intelligent guess is Satoshi died before Satoshi can reveal the identity and got anonymous forever.
Lol. Your theory that he/she died has been talked about before already which may or may not be true in this case. He/she may be living the rest of their life in the Bahamas. Who knows?
However, there are selfless people in this world even though they are a minority.