Originally Posted by Pladio 
I don't think not voting is forfeiting your right to complain. You have the right to vote in most countries, not the obligation to vote.
This means you are still allowed to complain afterwards as you have the right to speak and think too in most countries.
By most, I'm talking about Western-type democracies.
If you've got free speech, then you have the right to complain. The thread title wording would probably be more accurate if it replaced "right" with "justification". Kinda quibbling over semantics, though. [insert impressive Latin here]