I can confirm this too:

--- Report for: Aug 14 ---
16034 Total email handled

262 stopped by Postfix rules
14969 stopped by Spamhaus block-list
398 stopped by SpamAssassin
0 stopped by Anti-Virus

405 emails delivered to users

A month ago, Total email handled was over 30K, every day. The email delivered to users remains relatively unchanged.

I'm convinced that the single most important factor in defining your relationship with another person is shared experiences. The intensity and timeliness of those experiences determine how good a friend that person is at a particular moment in time. I think this explains why your High School friends are so vitally important to you in High School, but so meaningless ten years later. Or why war buddies from Vietnam or Korea still feel incredibly strong friendships for people they haven't seen or talked to in twenty five years.

The point of this is that the experiment is flawed. The way you build a friendship with someone is by doing the things you do. That shared experience is what the friendship is based on. Attempting to use conversation to build a relationship with someone else is a fundamentally flawed. You can never have a real friendship because you haven't had any shared experience that carries any significance or weight. The shared experience in this case is "I'm stuck in a room talking with this person that I don't know." Hardly the stuff of a meaningful friendship.