Google+ fills a void for me most similar to a mix between Twitter and HN. The discussions are what makes it shine. Why doesn't this happen on Facebook or Twitter? Here's what I think: For most people, Facebook is just the wrong context for intellectual discussions. Similarly, Twitter's medium and user interface are too limiting to have quality discussions since there is no centralized concept of a post. It's just a s…
I still agree, but it's sometimes hard for HN to separate their own niche uses of software versus what will be successful on the market. Pinterest and even Chill are examples of this