I really like the StackExchange family. But this is weak, IMO, for some reasons:<p>1. A typical forum looks simpler to me than this. If they're going to reinvent forums, it should be intuitive<p>2. AJAX? Yea, fine, but only as means to an end<p>3. "Discourse is designed from the beginning for high resolution touch devices." -- Tried on my nexus 7 and it looked bad, I had to turn on the laptop. Not all mobile devices can be described as "high resolution touch devices".<p>4. Their key features: "Conversations, not pages", "Get notifications when mentioned", "Simple, but with context", "Remembers your place", "Reply while you read", "Reply as a linked topic", "Real time updates", "Links automatically expand", "Bring your friends", "Paste to share images", "Log in with … anything", "Moderation that scales with the community", "Categories that grow with you", "Search that actually works", "Simple metrics", "Your stuff belongs to you", "Comprehensive API", "No app required". -- These are all welcome features, but they don't reinvent anything IMO, more like an incremental improvement. Most of them could just as well be implemented as plugins to traditional forums.<p>That being said, forums need to be reinvented, but Discourse doesn't do that.