ph0rk
Friendship is Magic, and Magic is Heresy.
Mr. Kaze said:After 3 consecutive sessions, a missing player should be booted. If they do come back, they'll be behind on the plot, (probably) behind on the XP, and acting foolishly on their way to certain doom due to any combination of those two factors. Remove their character from the game and when their life has settled down to the point where they can re-join, then have 'em bring in a new character that they know will be kicked out for 2 consecutive missed sessions.
That's absurd. Most people have wild and crazy lives where things happen, and these things are not always according to plan. Your method sounds like a great way to get players to quit your group.
It is a game, not art. If a player is a tad behind on the plot, so what? Are you playing to have fun or to shove your artistic plots down the party's collective throats?
Unless you're paying me to be there, I can't imagine skipping funerals, emergecy pages, and nookie (when single) for a game session.
Back to the original poster, I'm not certain if you mean killing a particular campaign, or killing a group. Either are possible, I suppose, but both would ultimately depend on the people involved.