Globaliser : quote "BA Y pitch is generally still 31", which is fine for this 5' 11½" person"
Good for you. Congratulations.
Any body who says they think the space in economy is perfectly fine etc...etc and so on has got to be from that airline (or else they are a bit soft). I have seen all this type of silly argumentation before, and its not really worth wasting effort on, it really is just tosh.
How do we price it? its unfair! how could it be possible? and so on. The reality is that regulations already govern most of the aspects of airline design and operation. It really would not be very difficult to do this.
Just a point, it isn't really your height that determines your required legroom, it is the length of your femurs, although height also plays a part. the point is some tallish people have short thighs and vice versa.
For the record, seat pitch on BA IS shrinking, as detailed on their own website - whether you think it is or not, and its pot luck whether its 30" or 31"
Just as a pointer some charter airlines use 30"