[Pete Parisetti]

There is no particular penalty for failing to start a race (complete 2 laps). You simply get no points and the consequent ratings hit.
What you're asking is that when you DNS a race you should get last place points. Or maybe your race shouldn't be counted at all, as if it never happened? I think it's pretty easy to see why those scoring methods can be exploited for the wrong reasons.
But this mehod is more like in real life; if you fail to do something for reasons outside your control, you still suffer the consequences. If that enrages you maybe you should try anger management sessions?
Also, what David said.

Martin, there is considerable extra penalty for DNF, on top of what you would get anyway for finishing last. Otherwise, why would I have written the post to begin with?