I do not use auto-followers for Twitter. I look at each one and decide if I will follow the twiticate policy of following people that follow you. I will generally follow anyone that follows me except if they are spammers. I can generally tell if they are spammers if they have a very low number of updates, a high number of people they are following, and a low number of followers. What surprises me time and time again, is that 1/4 of the people will follow a spammer. If a spammer is following 2,000 people, 500 people are following the guy with one update on how to get rich quick.
In the animal kingdom, a lemming is a rodent known for periodic mass migrations that occasionally end in drowning.
