It was never as big as claimed in the 'lore' of media.
In the past two years I would bet cash money this industry on the whole (including small fries, middle class affiliates, and BROgrams) has shrunk at
minimum 35-40%. Including full and part timers.
I think that the honest number of loss the adult online over the past 24 months is probably closer to a 60%.... With those people having now gone mainstream/retired/sold out/super sizing fries.
