yellow flag finishes

what is the deal with ending the race under caution so the lucky guy at the front at the time of the caution gets the free win?

No more yellow flag finishes, thank god. They're going to Green, White, Checker which is even worse. If the caution comes out with 10 or less to go remove all lap down cars, score how they sit when caution comes out. Bring all lead lap cars in for fuel only, re-start them double file as they would for the first lap. That's how I think it should be done. Yellow finishes are pointless unless weather is an issue, what's the point of running 400-600 miles? That's like any stick 'n ball sport ending in a tie, completley POINTLESS!