Originally Posted by
cavemanzk
NZ doesn't like to liability for an third-party involved, as if they though check your bags they have to take liability for your bags reaching the final destination in one piece. There's an reason why NZ is so profitable, its because they are tight as anything, and will avoid paying for something they don't have to.
I'm aware of NZ's claimed reasons behind this change; but it does not hold water. There are far more profitable airlines than NZ which will happily interline on separate tickets; NZ never specifically called interlining out as a significant cost in their financial statements; and it's decidedly customer-hostile to refuse to interline to themselves.
It's not what I expect from a 'premium' airline.