I have thought this and it's my bet that they definitely visit these forums to see what's being said (or should!). These forums are very thorough, detailed and cover every aspect of aviation. The members here are of many ages, nationalities, from enthusiasts to professionals.
If I was an exec. and I knew about A.net I would have a look at what is being said. I'm sure some of it would be of value. What the airline's customers are saying about their airline and what they like and dislike, say for marketing purposes, would be one example.