You're losing me as to the relevance of this, but put it this way - I couldn't possibly count how many flights I've had with BA, at this time of night. I have the nasty habit of allowing ba.com, or other websites to choose my tickets by it's default setting of lowest avaiable fare, so do not have BA Silver or Gold, which may have denoted me as a FF.

I wonder if having an option for lowest available fare qualifying for tier points & full mileage would generate some more revenue?