If something can be used, it can be abused too

A bot called Luisa Buffington started following me on Twitter today.  But then, I didn't know if it was a bot; but the tweets didn't look "normal".  Just for the heck of it, I started following it too.  If the bot's account is still active, you can see that it's doing a good job tweeting.  A quick twitter search reveals that this bot is one among 8 other bots, controlled by the same program.  (I'm still following the bot though, to see how quickly Twitter would find this network and block all those accounts.)