[SwellJoe]

I know Red Hat is making a ton of money. But, CoreOS and Docker, are they at the "making a ton of money" stage, or merely well-funded by investors?

[atonse]

Good point. I wondered if I should edit that specific part, but kept it anyway.

But a sign of getting investors is also that they see that there's still potential of making a lot of money, in spite of being open source.

That's true here too. Citus mentioned they spoke to their board (and presumably their investors too) about this change.