Starting with a few of the most commonly brought up things...
A Goodbye Section - Its not going to happen, end of story. All it did was have people spam it with flame and hate, just to come back and act like it never happened. It was a pointless area that didn't even need to be there, and was only there because Uutton and Gigatitan put it there before. I don't like the idea, so yea. "How will we tell people we won't be around?" Crazy thought, but I think if you don't log on, people will realize your not here. Thats just a guess though.
"What if someone leaves", then they won't ever sign on...end of story.