Thanks to everybody for the responses up to now. There are a few points I would like to clarify:
1. By using the word "community", I in no way am alluding to a "SS Roadie-only" kind of scene, where anyone who is not a SS roadie is harshly excluded. The notion of exclusive cycling communities is more pronounced in the cyberworld than on the actual real-world road or trail, where the average paceline can include roadies, cyclocrossers with road wheels on their CX rigs, and MTBers on road bikes building up conditioning for off-road races.
By using the word "community", it's only in reference to SS roadies such as myself having a forum to communicate with other SS roadies, in the same manner that fixie riders can commune with other fixie riders about such things as riser bars and 650cc front wheels for bar spins. One thing I am exploring is gear for SS road riders. I understand that it is easier to convert a high-end road bike to SS than for the cycling indutry to create high-end SS road bikes, but still, the thought is about whether the evolution of the SS road bike will be towards commuters, messengers, fixies, or long-distance roadies.
2. Thank you in particular to Dr. Bill for sharing his knowledge of SS road riding. Hearing about the likes and SS cycling exploits of riders like Lon Handleman and Kent Peterson is one of the many things I was hoping to learn about in this thread.
3. From a personal standpoint, I feel that riding SS road has opened up a whole new world of cycling to me, a kind of adventure-and-survival aspect, that the one gear that I have will have to carry me through a whole ride, and only my creativity and adaptive technique will get that one gear to work on climbs, descents, sprints, and long open road stretches.
4. While I posted this thread with the intent of culling information from the poeple in the SS/fixed cycling forum, I would be interested in hearing from and riding with other SS road riders in the DC area.
That is all for now, thank you again for all of the responses, and I look forward to hearing more from everybody.