Million accounts a day are just temporary. They are people that  chase profits. Since Bitcoin price doubled every month ofcourse they wanted to walk extra mile just to be part of it. They did not register because they saw a future in crypto.
Now that they will read story how someone took $100.000 loan a month ago to buy 5 Bitcoin. And today are worth only $60.000 I dont believe they will rush to the closest exchange to get bad service anymore.  This happened many times in past.  But yes this cycles are coming to an end. We will see only one or two more.