I think there was probably a breakdown in communication there. David75 most likely mistakenly interpreted your response as the following:
All the members posting in this thread are sad failures who try to validate themselves and self-worth through sex.
Which is not what he was saying.
I agree with Assertn, and I'm sure most of the folk here who posted would as well.
What I got from his post is this:
There are too many people in society who rely on sex as a means of self validation and as a method to measure themselves to others.