Originally Posted by simon_n10
Or whether it is BA staff that un-allocate your seats, to accommodate some higher ranking customers that say they want an A and C seat.
Please don't think this is the only reason BA might have to move you from an A / C seat - it could well be for genuine operational reasons.
For example, on Boeing aircraft , an additional oxygen mask is fitted in every row on the A/C side of all aircraft for use by infants.