I've visited airliners.net message board a few times. There are way tooo many of hte same type of messages being posted. "Boeing vs. Airbus?" "Let's talk about Delta!" "Lets talk about CO" "DL and CO's the best" etc. It's ridicoulous! By viewing the profiles of a bunch of users, I found that most are young kids.. go figure.
The aviation phots are what brings me to visit airliners.net, but that's about it. Flyer Talk and Trip.com have much mature audiences.
Jason