The price of Reddcoin, a largely unheard of cryptocurrency, has spiked over 650 percent in the last week, with most of that jump coming in the last 24 hours. A nearly vertical climb came on the heels of John McAfee, creator of McAfee Antivirus and 2016 Libertarian Party presidential hopeful, posting on Twitter that it was his “coin of the day.”On December 18, Reddcoin (RDD) had a market cap