I had assumed the thread title was tongue in cheek so don't get the controversy here?
cams, paysites, fan sites, etc...they're all different elements of 'adult' that to the outside world falls into the category of porn. and that world hates all of us smutty, smutty folk
some paysites have cams attached (and some of them have customer/performer interaction such as 'fuck a fan' type stuff and members area forums where the performers participate to either upsell or help with member retention)
some cammers sell porn on cam sites
fan sites are just a different way of arranging what was already being done. none are in competition with the others
just my
now stop arguing y'all so we can all get back to collecting cans by the side of the road