Earlier quoted context omitted.
If they ship unused crates to Africa then they get cheap clothes. Win win all around.
Not always a win. There have been a few reports that sending large numbers of clothing donations to areas that don't specifically need them has the result of harming local industry that would otherwise be able to produce and sell clothes.
but brand dilution
I don't care. If you over produce then you made a bad economic decision, tough luck. Destroying goods for accounting reasons is an abhorrent policy driven by greed.