How would you administer a "large" luggage fee? Flying out from BHX to DBV on Sunday (with BE), I noted every person on FR's KUN flight had their bag placed in the sizing device. At BHX, they are using their own staff, didn't know loading, but I guess it was quite busy.
Coming back from TRS > BHX this afternoon, handling agents doing the gate checks, no-one had to use the device, flight about 2/3 full.