Man have I really enjoyed CoreOS/Container Linux, etcd and generally all the work the CoreOS guys have done, and boy have I hated Red Hat's business practices. I moved away from Red Hat back when they split the OS into Enterprise and Fedora flavors.
I was a big fan of Red Hat back when they were leading the way in the early days of linux with things like application packaging, and a general vision towards simplicity. This is the same thing that attracted me to CoreOS' elegant engineering. I don't object to companies focusing more on revenue, as Red Hat's Enterprise move clearly was. But I cannot abide the erosion of vision in pursuit of profits. In particular when elegance and simplicity are replaced with complexity, and user hostile design to increase switching costs.
I realize there is probably a natural selection process at work here, and user hostile design is clearly a more profitable strategy, but I can't keep from hoping that one of these times the well engineered, simplicity focused, user centric design will find the right business model and survive... vision intact.