I tend to be skeptical that "$x but better" is a viable business in the VC era or maybe on the internet at all. On the internet, where publishing is easy, but distribution is hard, it seems like there's already a natural tendency toward winner-takes-all. Execution matters somewhat, but at some point, I think it comes down to who can throw more capital at the problem.

I'm interested in this problem space, because current social media tools leave me somewhat dissatisfied. But I'm also skeptical about how you'd build it successfully.