Basically because they wanted to get assurance that they go home with little money than going home with nothing at all. Otherwise stated, they are already too scared to risk. That is just it, and nothing more. They are definitely not intending to ruin their cash cow but are just in fact trying to save their asses should Bitcoin's price fail to recover in the long run. You know, this happens because priorities change through time. They may have believed in the power of cryptos a year ago and went all out for it, and now found themselves making certain assurances about every investment they have. THIS IS A-NORMAL. But to say the game is over is outright a crybaby because 2018 has just began. As what they say, winners never quit; quitters never win. So, are you yay or nay?