It's right there in the first paragraph: >..some prefer to purchase exactly the “Virgin Bitcoins” that has just been mined and overpay for them from 10% to 30%

It's right there in the first paragraph: >..some prefer to purchase exactly the “Virgin Bitcoins” that has just been mined and overpay for them from 10% to 30%. >meaning that buyers were able to scoop bitcoin at more than 6% below market price