So ... I think I've got it.
Too many miles out there cause too much liability ...
So we must remove all preferred and minimum mileage bonuses ...
However we get paid for miles given by partners ...
So lets get our passengers to go out and use our partners all the time ...
The partners will have to pay us to award miles ...
So mileage liability may go up, but at least we'll get paid for the miles and not have awarded them to our passengers ourselves ...
In fact - maybe we can spin this ...
When all those annoying preferred members call us upset about the fall of all bonuses - we'll just point them to this web site and use some statement such as "evidence of our commitment to mileage accrual opportunities."