Oneworld FF crediting issues from MH
Just a quick word of warning for OneWorld frequent flyers who are specially flying on MH for tier points/miles: just because your FF number is on your boarding pass, it doesn't mean that it's actually in the system (I know - it sounds crazy, doesn't it?). Anyway, what this means is that you may well have to waste time afterwards chasing up the miles and/or getting them credited to the correct OneWorld account if you have more than one.
Their customer service reps are also not helpful at all in trying to resolve issues - basically trying to pass the buck to someone else rather than just getting on with it and resolving the issue.
So in case you're a OW FF thinking of a miles run on MH, consider yourself forewarned... there is a reason why MH have to price their tickets cheaply!