Can a project exit cleanly, probably not.

What I'm really disappointed with the CNCF in particular was the lack of support I felt from them. I mean a trade organization is going to do trade organization things like Kubecon, but they could have spent just a fraction of their marking budget on things that directly support projects.

What I saw directly from them was the github org, the CLA bot, and a discount ticket to Kubecon. What would have been useful was things like: independent developer stipends, so everything isn't only backed by the large companies in the game; paying for technical writers; independent community managers; dispute arbitration; dedicated hardware for performance profiling; and I'm sure I could think of a few more.

While I don't think that anyone in the CNCF is doing the mad scientist laugh trying to make it harder for it's projects, I do think that working with them has change my image of them as a bastion of Open Source.