If i had more than 100 bitcoins on my wallet i would be doing exactly the same right now, if you have money, you can easily make more money if you are decided to make more.
And you are probably talking about all those who are always creating shorting positions, i guess. They are the only ones who earnt money from that recently dump that we had yesterday.
The market is full of opportunities, and unfortunately, the only ones who are earning a bunch of money are the ones who most money have.
it is a cycle, it works by the same way in every situation of the society.
I don't thnk they are "testing". I think some of them are ALREADY making money from this fall.
The market is not like a product which you give it 100 times of testing before you draw a conclusion.