Someone needs to come up with some new "cool" way for people who hardly know each other can hang out and feel part something that doesn't involved sex, drugs, alcohol or smoking something. Smoking is a gateway to feel like you have friends.
I think the problem with this idea is that there's no acceptable "need" to go down there every few hours. People might look at you as a slacker hanging down there, whereas the smoker doesn't get deemed a slacker for "going for a smoke"..
Maybe smart phones can fill this role? Peer connections and transfer is a recurring theme for phones, and the Internet is full of "social". The social rules for cell phones aren't set in stone, and gathering in impromptu groups to 'bump' phones would let people meet strangers and chat, if that's the way the technology worked.
Here's an idea: An app that knows about your interests and notifies you when you're physically near someone who shares your interest. It wouldn't advertise what you're into, or ID the other person, just notify you when they're within, say, 25 feet. Then you can put in obscure things and find the few people in you life who share those interests.
Another idea: a comm station where people gather to use and take care of phones. It would have power, highspeed connections, virus scanning, docking stations (kvm), alternate systems for temporary use if your device is broken, etc...