Using tweetadder is a great way to get your account suspended. Also, it's not about the quantity of followers you have, but the quality. People who follow back based on a keyword search are probably going to be pretty worthless... If all you want is a big number on your profile page you may as well just buy followers from Fiverr.
I still can't get myself to embrace Twitter, but this was a good set of thoughts around it. Maybe someday I'll get it together, re-read decent articles like this, and get myself out there. In any case I appreciate the poster's point of view.