Adding those public keys would not identify you as everyone, as you do not have all the matching private keys.
> FYI, this happens because SSH automatically presents a public key to the server when trying to authenticate. If the server doesn't know that key, then SSH tries the next one. You can enumerate all of someone's keys this way (like this SSH server does)
Therefore, even though I can't authenticate as Linus Torvalds, an SSH server can see me present his public key and hence, log that public key for future use, like sending a message? Is that not correct?