They say it can't be the miners

[flyingplows]

Maybe a few factors are that the need to sell is more mandatory and the need to buy is more voluntary, I mean these mining companies must sell a big part of mined btc to pay the bills and merchants most often exchanges btc for fiat as soon as they get it. While on the buyers its not quite like this - they can delay, can buy much later, can not buy at all if they don't like it so the pressure is not that hard like sell pressure...