I disagree. Wave's biggest problem was that it wasn't user friendly. If you wanted to search for open topics, you needed to use under documented search modifi

I disagree. Wave's biggest problem was that it wasn't user friendly. If you wanted to search for open topics, you needed to use under documented search modifiers. It worked just fine for most early adopters, but never gained traction because it just wasn't accessible to a wider market. The problem wasn't that it didn't serve a purpose. The real-time collaboration has moved to google documents, and fills a real need. That said, your analysis for the failure is pretty accurate. It was a focus on engineering over user experience that sealed Wave's fate as a case study on how to not build a product.