It seems like you'd just increase the volume of spam and tell your spambots to always vote "Constructive". If you release more spam than legitimate users send m

It seems like you'd just increase the volume of spam and tell your spambots to always vote "Constructive". If you release more spam than legitimate users send messages, you'll break through regardless of how they vote. You could even have your spambots downvote the real users, since they'd be displacing your precious viagra ads.