regarding #1: As others mentioned, IntelliJ (the platform) is open source, but even if it weren't, it would be a superior model. I'm a user of JB products for

regarding #1: As others mentioned, IntelliJ (the platform) is open source, but even if it weren't, it would be a superior model. I'm a user of JB products for some years now. last week I had to open eclipse again, which is probably THE foss IDE for java. Developing in it is mostly fine, but if you get to the tiny details then IntelliJ is far better (multiple Carets, a proper dark mode, good vcs integration, UI is to the point and not as crowded as Eclipse, integrated terminal, etcpp). I think that it shows the limits of (pure) open source and that the paid model really can polish a complex product. I imagine that contributors and drive-by patches are not really able to create a coherent product which maybe needs a proper plan. (This really reminds me of that Bazaar vs Cathedral argument)