Do you ask every woman you've been with how many guys she's f*cked, if she's ever filmed it, if she's ever had a threesome, or how big their *icks were/if they were bigger than yours?
Seriously, Who cares? Showers, soap and dental hygiene products exist, why should I care about things the person I love did before they met me if I was doing similar things with other women (filmed or not) before we met? I will concede that there is a fine line though.. two girls one cup kind of stuff or anything involving animals would be too far, but "traditional" porn, big deal.
Or it shows that I just don't own a camcorder/tripod or found a convenient way to film myself and the women I've been with, lol. Do you think people should feel shame for getting paid to do something that they enjoy, that brings others enjoyment, and hurts no one? (provided that they didn't get into it due to some past psychological trauma), or that sex is suddenly shameful once its videotaped?