FlyerJack... First of all you consistently consider your behaviour as the yardstick for KLM/AF. I am pretty sure it isn't. Many people here have tried to explain to you that it is not about increasing your spending with 30% but protecting and increasing overall revenue.

All kinds of marketing theory would suggest that devaluating your prime product by allowing others to get it cheaply is not a smart move.

Even offering a 'split ticket' to the US for instance (day flight in Y, night flight in C) would be a very bad idea for KLM/AF. I would buy them all the time instead of C returns.

You see, revenue maximalization is not about what each individual would like best.