Yeah I've noticed it, wondered about it as well. I've also noticed a lot of hot topics re: most developing current world events (with the exception of the silly panic/fear mongering over Ebola) seem to be avoided and/or shied away from. Not one thread started about PA troopers and the subsequent manhunt, nothing about ISIS, Russian overflights of all NATO countries, etc.
But you know what? I don't think that's such a bad thing. I think many here, generally, on a day to day basis, get a stomach full of the world and come here to relax and be entertained and have good discussions on the topics of R&R, cool guns & gear, books, etc. with good guys of like mind...I know I do.