Porn model Cherry Torn has this to say about the mysterious phenomenon of porn-consumer negativity towards the performers they are paying:

It’s hard enough to be a woman with opinions, but taking unashamed control of your sexuality is such a threat to some men. There will always be a certain subset of porn consumer that lashes out at performers, because they don’t know what to do with their guilt over jerking it to whores. Maybe they just get off on being mean or they want to show the dumb sluts how smart they are…