Hannah, bear in mind that you may not get women who have experienced discrimination, sexism, "banter" - in any area of life, not just in aviation - to rush forward and post about it publicly.
Much of it is still dismissed as just the "lads having a laugh". And women quickly learn they better fit in and laugh at it, too. Or be prepared to be told they have "no sense of humour", or should "give as good as they get"
Happily, the "banter" seems to come from a minority, but a very vocal minority.
But I'm not sure I understand how - in 2011 - British Airways can still get away with this type of advert
British Airways Advert 2011