Can someone explain to me why (as a QF FF) I get status bonus miles when flying on AA, but not BA? Considering there is a closer (ownership, reservation systems) relationship between BA and QF than AA and QF, why can't we earn status bonuses on BA? This really bites me as due to Jbeds on BA I do a lot of intercontinental travel on BA.

And for that matter, why don't we earn status bonus miles on all OW airlines?