It's not a question of whether or not 'democracy' or simple voting is worthwhile; in some instances it is. However, overall democracy is a net negative and a poor way for people to interact.
Why promote democratic processes on a site dedicated to liberty and a constitutional republic? It's pretty ironic that we're practicing democracy to determine what is worthwhile, while trying to eradicate democracy within government. If we believe in liberty, then why not practice it with regard to the forums?
It seems the libertarian thing to do would be to allow everyone an equal voice in discussions, regardless and free of what others may superficially think. Merely clicking a button to agree or disagree doesn't add anything to a discussion but friction, and results in mob rule of information and discussions.
Ron Paul's Convention Speech