Scenerio:
Player is vanished when login.
Player fakejoin so everyone know he's online.
Player socializes with other players
Player randomly disconnects/quits with no quit message.
Other player socializing with thin air.
It makes them look stupid, lol

My suggestion is, can you put a "player has quit" message when someone disconnects.

Check your permissions. I suspect you gave yourself vanish.silentquit

I got the node *

Then you need to read the documentation and negate the nodes you don't want.