It's been almost a month since John McAfee started to "pump" some altcoins with his twitter account (over 700,000 followers). I checked the results of these cryptocurrencies and compared them with Bitcoin.
Altcoin price - the highest price of the day.
The average result of John McAfee's altcoins is -2.7%, compared to -19.7% Bitcoin.
Images from: https://www.google.com, https://coinmarketcap.com
Have a nice day!