I know the question wasn't directed at you MostWicked but I am grateful that you (that someone!) answered. The answer to my question appears to be that you can't tell "good porn" apart from "bad porn", but if what you think is good porn turns out to be bad porn, it's the woman's fault anyway.
Nicely twisted.
Maybe it would help if we more clearly defined "good porn"
For me, it is well filmed - reasonable quality, appropriate lighting, no shaky video and decent perspective. I don't like them when they are just focussed on the genitals. The most important thing for me is that I like to see a real sense of passion and pleasure. That they are doing things to eat other that turn them on. No fake story lines or noises. Amateur tends to have better, more realistic angles, rather than the display angles you get in professional shoots.
"Bad porn" could be described in numerous ways but would include any indication that everyone involved, wasn't enjoying it.
So if a couple, as part of their consensual and pleasurable sex life, decide to video themselves having sex, and share that video, there's a good chance that would be something I would enjoy watching.
If sometime later, someone in the video, decides that they no longer wish that video to be available, then there is not a lot they can do about it. You can't undo actions. If you choose to strip off in public, then you can't complain that people will take photos, and you can't withdraw your consent after the event. With a video, that doesn't suddenly switch from being good porn to bad porn, it's still good, because what I am seeing as a viewer, is consensual. What I am watching, is not a video of someone being abused. I cannot possibly know if they regret taking part at a later date.
If it was shared without permission of all involved then there is a breach of trust, but I honestly do think that we all have a responsibility for ourselves. If you never make a porn video, it can never be shared. If it does get shared, it is not your fault, but you do have some responsibility for the outcome. It's a bit like leaving your car door unlocked. It's not your fault if it gets stolen, the fault lies with the thief, but you are expected to take sensible precautions to protect yourself.
People need to wear clothes and eat food. They don't sit and wank to videos of factory workers working themselves nearly to death.
People don't need clothes and food, in the quantity and at the cost that they choose to buy them. Maybe it would be a bit more honest if they did watch videos of the factory workers, working themselves nearly to death, because that is the reality for many retailers, but it is easier to block that out and justify that you NEED that extra top and jeans.
And I don't think anyone has said they need porn. It is a pleasure, like chocolate, and like the difference between good, ethically produced chocolate, where the workers are not exploited, and cheap chocolate, where the cocoa plantation workers are exploited, consumers can make a choice as to what they want.
There are many people, men and women, who are not exploited or abused, who simply enjoy sex, participating, watching or being watched. When they film it, I like it.