I’ve heard the pornstar gambit a couple of times, not sure where the crossover point is between “appeared in a couple of films/been on a website” and “actual star”. I suppose if it’s someone I’ve heard of outside LPIN, that would qualify as a star.
It usually comes across as a marketing ploy, either in the “guy is interested in bragging rights over having had contact with a celebrity or pseudo-celebrity”, an attraction which I have never understood, or giving the impression of being wilder and more open than girls who haven’t done porn.
Given that most of the positions in pornography are for the benefit of the camera rather than the comfort or pleasure of the subjects, pornstar experiences don’t seem terribly enticing.