Yikes! That is one loooooong paragraph!

Why do you even care about this so much? It seems to make you really angry...

Whether they refer to themselves as "born again virgins" (and no; you can't really be a virgin again) or not, what they are doing is making it clear that they want to defer sexual intimacy until a strong and committed relationship develops. It's a valid choice for a 20-year old and it's a valid choice for a 50-year old, no matter what her (or his) previous sexual history... (The article you cited is a decade old, though--it would be interesting to see something that talks about the prevalence of this today...)

Sexual blackmail is an entirely different issue. Someone may withold sex in exchange for other goods/actions, but that's not what this issue is about--it's about developing deeper emotional relationships and about taking more control of one's own sexuality...