I almost down-voted you, but then I thought about it and I think you have a point worthy of discussion. The core of Github is open source, which allows for int

I almost down-voted you, but then I thought about it and I think you have a point worthy of discussion. The core of Github is open source, which allows for interoperability and confidence, but what they have built on top is proprietary and community-engaging. Just like managing email infrastructure, there is a lot of nuance and domain expertise that comes from experience only. Come to think of it, it seems a lot of open source technology is so loosely built (configurable/ flexible), that it requires serious expertise to actually run it.