Do a little research on the 1992 election....Perot is the reason Clinton won. Third party votes, especially independent or libertarian will help the democrats.
I'm sick of the two party shit and I don't care what all the numb nuts out there think about voting third party....it's better than trying to fit in with the sheep
edit: If Johnson can get 5% of the popular vote, the Libertarian party gets money a couple million. We all know elections run on money, not a message. Things will never change if everyone has the attitude "Oh he's third party he'll never win"