I've corresponded and communicated with men who did porn all types of it from gay, bisexual, hetero, and fetish/leather/BDSM type porn.
They all said how contrary to what people believe you don't make a lot of money doing porn, and that you make more money by being a prostitute on the side than from appearing in porn videos; but they videos are basically like free advertisement to potential or future johns/clients.
The porn guys also told me how once you do porn, even if it's just one video it's always out there, there's no hiding it, and that pretty much everyone will know you did porn or can find this out if they want to, and that for some people who do the whole porn/prostitution thing that it can be very difficult to go back to leading a normal life or working a regular job where you don't have sex with strangers often for instant cash.
They also said how it's not that fun doing porn since you have hot bright lights on you, people around you like a director telling you exactly what to do, when to do it, how to act, etc., which positions to be in, that porn is basically masturbating using someone else's body, it takes all the fun out of sex, and despite what you see in porn the men, women, or whoever is in it are usually not attracted to each other at all. The porn/ex-porn guys I communicated with also told me how despite what you see at the start of porn videos saying that nobody is on drugs, does not have an STD, etc. that this is BS since lots of people who do porn do get high before or during filming, and a lot of people who do porn do wind up with STDs, and people often do get infected with STDs but they show up as being "neg" on the test since they were just recently infected.
