Forfeiting drives me crazy.
Of course, it's okay to forfeit if a life-event requires your immediate attention. But, the only other legitimate reason is if the outcome is a foregone conclusion and the person forfeiting is doing it in consideration of the OTHER player.
People forfeit because (1) they mistakenly believe it will protect their win ratio (silly, because 'forfeit' is literally a synonym for 'lose'); and (2) because they lack character. "If I can't win, I'm taking my ball and going inside." Seriously, in real life would you ever pay $100 for a round, golf balls, etc., then walk off on the second hole because you didn't think you'd win in the end? It's the journey, not just the destination... stick around, enjoy the weather, have a beer...
I think habitual "Forfeiters" should be banned from WGT for life and sent to Alcatraz.