The classic answer of a person who can't explain themselves or is too ashamed of their answer to give it.Click on this link and read the comments.
So you are holding up the messages on a science fiction message board as an authority on the subject? As someone who has been to plenty of science fiction conventions (and has also been married for over 15 years and has two children), I can tell you that the problem with those people is not that they aren't having sex (and plenty of science fiction, fantasy, anime, and role-playing fans do have sleazy casual sex including at conventions, by the way) but that they have trouble forming sound relationships of any sort because they have socialization issues. Casual sex or losing their virginity isn't going to save them. Their problems are more than a trip to Nevada or Amsterdam and a few hundred dollars could solve for them. Even if they had sex, they'd still be the same lonely social outcast and might have a few more psychological issues to deal with, instead.