It's a fun idea, probably won't get done unless someone is reallllly distracted and works on it in their spare/mental break time, but a fun idea. Then again, you'd have to make it one token per account (or that would be way unfair if you could start the timer on each character individually) and that would start the clock on all servers on all characters. Then again again, people with multiple accounts get a little added bonus if they so choose (but they are probably dual boxing anyway so it wouldn't affect all that many people).
I think the more fun idea is that you can teach a cat to develop games! I can't even teach mine to stop fearing the new air conditioner! stupid cats.