Thank you. I was seeing stills, taken with "real cameras", I hardly ever saw any web-cam stills that weren't rather small like the ones on the model's page. So by the sound of it the effect is simply what webcam pictures look like when shown at this larger size.
(I never was a paying customer, so I only ever saw live feeds for like five or fifteen minutes or whatever that they gave out free passes for to new affiliates so the affiliate could see what they would be selling. That was way back in early days when they did it with tricks like streaming endless animated gifs, or maybe the very first deployments of actual streaming of some kind.)
-MarkM-