Watching pornography is not naturally hazardous to men or females. But I would use some caveats. There are individuals who most likely shouldn't see porn, like those with bad body image or those who have been sexually taken advantage of. Depending on your choice in watching, you can develop impractical expectations about sex or what people like or how you'll be anticipated to "perform." And seeing with someone needs true authorization.
When none of these warnings are up, pornography can definitely have benefits. Therapists sometimes recommend it to help individuals become comfy with a particular dream they or their partner may have. Porn can reboot a couple's sex life. It can provide you concepts, or help you connect with what turns you on.
Pornography can reboot a couple's sex life. It can offer you ideas, or assist you contact what turns you on. Pornography can deliver you there at best, or disgust you at worst. All of it depends on what you pick to view. With the availability of pornography online, it's possible to sample enough pornography rapidly that you don't need to find yourself viewing wall-to-wall hard-core sex if it's plot driven erotica that interest you. You're only a victim of bad pornography if you let yourself be.
And a word about sex or porn dependency. I don't believe in it. Unlike a chemical compound, like opiates, you can't become "addicted" to sex or pornography; you can become a compulsive audience. In this case, it's not the porn that's the issue; it's the compulsive personality. If it weren't porn being used to act out one's compulsive nature, it might be food or some other habits.
As for whether it's damaging or beneficial to the performers, let's take females first. There are some who pick to perform since they like sex a lot and they consider it a great method to earn a living. Then there are those who are drawn to porn as a way of acting out subconscious mental problems-- trying to find daddy's love or punishment for being a bad lady. For many, it's most likely a little of each. Even ladies with the best psychological health will face some drawbacks from this work. Our culture consumes porn at record numbers, however the women who carry out are still judged roughly.
I'm not exactly sure the male performers go out completely untouched either. While they may not be evaluated as harshly as the ladies, eventually they're deemed freaks who make their living with their anatomy. John Holmes's fate is the supreme cautionary tale.
Perhaps if we weren't still so taken in with guilt and pity about sex, neither seeing nor performing in these movies would carry the weight it does. But then, maybe we wouldn't be so thinking about them, either. If the fruit were not public porn prohibited, would anyone care to take a bite?