I'm promoting it because it pays my bills and I believe it can succeed if we have more people here - millions - not thousands. It could easily fail with the shenanigans at the top. But we have to start somewhere and this is the place we are.
We have people actively trying to promote on Twitter, so this is where I am exerting effort now. Trying to talk my friends into joining? No. But twitter is full of people who put effort into social media so I think it is a good place to mine.