No the rest of us are too. You may have missed it because you were to busy telling us how great you are. Frankly selling domains is not the same as selling shoes. Many of my customers fall into two groups, both very easily reached through simple social media. Neither are overly sophisticated, so it works fine. As for Twitter, I probably sell a domain every 2 to 3 weeks where the lead came directly from Twitter. I'm not sure what part of Twitter you didn't understand, but I'll take the time and explain it all.
Twitter Strategy:
I send out a Tweet announcing a new name, or at least a name I haven't tweeted about recently if its an old name. I Tweet exactly 6 times a day on autopilot, and occasionally throw another in manually. Now here is where it gets tricky. The reader sees the domain and says to themselves, "damm that's a good name, it's exactly what i have been looking for". Then he replies back to me and the negotiation starts.
Hopefully you followed that, its pretty obscure and dry. Also, to be clear I am NOT the worlds best at anything related to the Internet. In fact how I have managed to be successful is a mystery compared to your knowledge. Anyway, that's how I use Social Media to sell domains. As with everything I post, feel free to use it exactly as I do, or change it up to match your own goals and strengths.
I'm here to help you.