Here is a quote from over at IshCon by treemeat that sums up why I voted.
I always participate in the electoral process even though I'm anti-government and I know we don't live in functioning democracies to begin with. I vote for the Green Party as a protest vote and every federal election the party gets more votes and attention and this causes the major parties to start adjusting their policies to attract our votes to form a majority government. It's a fucking slow strategy but it's not like voting takes up a lot of energy and I figure it's better to interact with this broken system in the little way that I can.
Ran Prieur imagines "what would happen if everybody, instead of voting, planted a single food-bearing tree."
Personally, I think the world would be a better place.