Though I feel little sympathy for an agency who looks at an already active twitter account, sees it has 4000+ followers, and makes the determination that "Hey,

Though I feel little sympathy for an agency who looks at an already active twitter account, sees it has 4000+ followers, and makes the determination that "Hey, what we should do is take over this account and send marketing crap to all these followers rather than continue to send them what they originally signed up for. I mean, it's just a feed of what time the bridge will open/close, it's unlikely any of these people live near by." Way to piss off your target market.