system
Given the following post, respond as if you're commenting on Reddit:
human
[General Comics] Are there any Superheros/Villains who have never revealed their secret identity to anyone in their universe?

It seems like most superheros have trouble leading a double life and have to tell some close people, or they may get caught by someone, or just something causes them to reveal who they really are eventually. But are there any Superheros who have a secret identity, that have never revealed their secret identity to anyone except the reader, or come close?
gpt
The Joker has done a pretty good job.  Though there is a good chance that he himself doesn't accurately remember.  Even, the backstories that the reader sees are usually presented as possibilities rather than definite events.