A noder is stealth mode
is one who has his Chatterbox turned off and always clicks Don't display in "New Writeups"
when making a new node. He also sometimes tries to masquerade
as other noders and quickly turns off his monitor
when other people come into his room so that no one can see that he's noding.
Some might say he's antisocial or paranoid, but no - that's stealth.