If MoneyButton was open source then the instant Ryan made his announcement someone would've forked it and kept a copy on BCH while continuing development. With open-source, the things that matter get built. MB was
another disruption attempt. They couldn't take over the reference client so they tried to build an ecosystem which will move over to CSW. This shows even if they don't succeed at
winning the race over the client, they can still cause great harm by forcing people on the app level to stick with their client. That should be a lesson for future projects: