I agree that doing a you-porn or having a webcam does NOT make you a porn star.
In that case you MAY be an adult actress .. but you're not a porn star. (actually I don't think webcams even makes you an actress..)
You need to have actually STARRED in something to have achieved that status... at least a couple of covers/feature actor/ress credits.
But as "some-guy" (his username) pointed out above, the PSE is a completely different kind of service.
Maybe its not for you... perhaps you like GFE.
But for guys who want BBBJNQNS, CIM, Facials, Greek, high energy sessions with los of different positions, less of the kissy-cuddly feel and more of the lets-fuck-each-others-brains-out session... they're going to get a lot more of what they seek by looking for a pornstar (or adult actress)
They know that porn stars genrally arent going to get offended if they ask for these services.
And the other advantage is: they can see our "performance" in advance.
(Though keep in mind even we have activities we will do on film which we will NOT do in private sessions.. you still should ask.)
And of course the old faithful: the FANTASY
Some guys see a girl in a porno and they want to experience being with her.
The porn stars forum here at TER is full of ISOs for girls the hobbyists have seen in films