I just looked at the killscreen, and was reminded of one thing. Yes the bug kicks in right at the beginning, but you don't visually die because the timer timed out, the timer starts at 4000 after the bug, and you die when the timer is at 3700. It's a behind the scenes bug that still kills you at 3700 due to a calculation rollover.
For some reason, I was OK with the description of saying the bug happens as soon as you start, and you're left with 0500 after the bug. BUt, now I reminded myself that you die with 3700 left on the timer. Sure it's a behind the scenes timer that actually kills you, but thats a non-visual bug going on.
I had to go remind myself exactly what the kill screen looked like as well when I first saw this thread. If the timer clearly showed 0500 and counted down from there, I would be more open to the notion that just reaching 22-1 was enough to prove you reached "the end". However given the timer lies and appears to give you enough time to finish the board changes things for me. Here are a couple of additional ideas I'll throw out:
1) How do you really 100% KNOW it is going to be a kill screen if you don't play the board out and let the timer actually kill you early? I mean, maybe you don't even realize you're playing on a board set where the code is slightly different than what has been analyzed by Don Hodges and sometimes the kill screen doesn't kick in or it is altogether fixed? Or maybe everybody has missed something in the code analysis and there is a weird case where the kill screen timer won't kill you? Or maybe an electrical glitch will occur, corrupt the timer memory location, and you'll miraculously get extra time and can pass the screen. If you get killed by a barrel you'll never know. You haven't "proven" it is really a kill screen if you don't actually have the timer expire.
2) In line with (1) above, if anybody from the general public is watching, and you die from a barrel, are they going to believe you when you tell them it was the kill screen anyway? Remember, the timer looks like you still had plenty of time to finish the board. Lets say your are being broadcast live on G4 and you die on 22-1 getting hit by a barrel. Is everybody really going to be satisified being told "well that was the kill screen" if they don't get to actually see the kill screen screenkill you?
That being said, anybody that can get to 22-1 obviously has 100% of the skill to get a screenkill. However even though it is "trivial" to get once you've cleared the 21-6 rivets, we've already identified at least 3 cases where the players unintentionally died on 22-1 before the screenkill, most notably in the Wildcard Rematch #2. So it can and does happen, so I agree that it worth clearly defining the terms, especially when bounties are being offered.
Finally, while being able to say you are a "kill screen" player or that a given game was a "kill screen" is a mark of recognition, the ultimate recognition for the game is and should be the score achieved. If there are two games that both score 1,000,000 and one of them gets a screenkill and the other ends on 19-6, the non kill-screen game is clearly the much better game and will receive more recognition as such. Similarly if there is a player that has scored 1,100,000 but has never had a kill screen and there is another player that has a high of 810K but has had a kill screen, the first player should and will be recognized as the better player.
-George
PS - I disagree with Ken about what happens if you get to 22-1 with more than one life left. As long as you hit the timer with at least one of them, I'd give you full credit.