I think the post near the top asking If we should stop wearing clothes because most are the product of child labour had it pretty much spot on.
There will be exploited women on porn sites no doubt, but they aren't ALL exploited women and it is ridiculous to suggest they all are.
Exploitation is all around us.
Many of the workers in nail bars are modern day slaves.
Should we all never get our nails done?
Many hospitality workers are immigrants being overworked and underpaid.
Should we all boycott hotels?
Ditto for farm work and cleaners of big corporations.
Many of our clothes are made by child workers.
Should we stop wearing clothes?
The list just goes on and on and on and on....
There is nothing wrong with porn using people who fully consent.
Ban it and it'll go underground and it'll get a great deal worse for those women who are trafficked and exploited.
The answer is surely to tighten up the regulations around the porn industry.