Tunesy raises a good question. I'd say that a poll self-selected by the 'most active' users is likely to be valid, since the 'most active' users are exactly the likely buyers of new stuff. So there's no reason to seek out everybody who happens to own Poser, just for the sake of an ideal random sampling. But are the forum participants the most active users? The purchasing set very likely includes lots of folks who never read forums but just check the stores and freestuffs.

My python page
My ShareCG freebies