If we talk about facts, then you are right because there is no reason to have bitcoin over seventeen thousand dollars, this is a huge number and no one knew that it was going to touch these levels.
I mean I can see it crash because of all that blind money that came in... with some market manipulation and bringing the price down to say 14,000 everyone who jumped on the train at 17k or 16k might leave when they
It only dropped because there were a lot of fud on this forum, and everywhere, i think that it was just a marketing campaign to stop buying bitcoins.
Even in my country there were some warnings from TV programs saying "do not buy bitcoin because it will crash"
But then again last time BTC really crashed, it had a ''good'' reason it was all that FUD with China... and next thing you know it went from 3k to 17k.