I agree with you. I think it’s pretty normal to seek out someone that looks similar to someone you once had feelings for. Honestly, it made me think of how that’s the plot line for quite a few Edgar Allan Poe stories. There are much worse things happening in the internet. I’m not bothered by this in general, and I’m a woman. What would bother me is if the men were saying shitty, misogynist things about the girls they liked in the past. Porn stars are people too, and I find the idea of a porn star doppelganger funny the same way celebrity doppelgangers can be funny.