Have you ever watched a porn scene or looked at a picture and thought "Oh who the hell is she? I've seen her before in something, I'm sure"? Or maybe "Wow she's stunning, who is she, I want to see more"?
If you have then Name That Pornstar is for you. This is a community of porn users and experts who know their porn stars inside out. Well not literally but there must be very few girls who at least one person here won't know.
It's not a chat forum in the usual sense. The idea is you simply post up an image from wherever you saw the girl in question, other people may see it and post up the answer in a comment below. Plus of course if you know your porn star names then you can browse through the thumbnail images and try to name any of them. Usually the answers come with a link to a page naming the girl, maybe a profile page or anywhere where an authoritative answer can be found.
Solving porn star names earns you points in the forum however not being a user I don't quite know what you do with them - I don't think they give out prizes or anything like that! Anyway it's a very useful community-driven resource for when you need to know who a girl is.