This was said about the previous 2 bubble-crash cycles as well.
Those were arguable the result of poor exchange architecture. I don't think there has been a real crash yet, but one is coming and because of this huge price run up its going to be messy. Very, very messy.
No, they weren't. I was here, so I should know. We crashed in the past because the bubbles popped. Then, people blamed the most recent "bad thing" as the cause. Just watch, the same will happen here.