Writing in Ron Paul is like saying "I'm going to vote in my basement. I will write Ron Paul on a pieceSubmitted by jetguy on Fri, 09/07/2012 - 06:13
of paper and put it under a cardboard box, in secret."
Nobody will ever know you did it - and it won't change the two party system at all.
And it might even invalidate your whole ballot, so that you vote for other Liberty candidates won't be counted either.