Incidentally, Coinbase's graph has an almost misleadingly modest aspect ratio. If you want to compare their growth to other growth graphs you've seen, compress it by at least half horizontally.
I ask, because IMO much of the debate about bitcoin consists of people conflating and abusing definitions and talking past each other. As you are obviously interested in it, I wonder what you see, and perhaps what interests you most about it.
In some sense I suppose that actually answers my question.