They call it a con because it involves instilling "confidence" in others. High sale prices are one way to inspire confidence in others. Whether that person th

They call it a con because it involves instilling "confidence" in others. High sale prices are one way to inspire confidence in others. Whether that person thinks the sale price is a legitimate indication of value, or they think at least someone else down the line will believe that, is not always clear. Because of the nature of crypto anonymity, there's always at least some percent chance any given sale is a legitimate transaction between two unique and non-colluding parties, and vice versa.