The Purpose Varies — by Chris Bowler
At some point, you’re going to find out that someone you admired or respected doesn’t find your stream of tweets attractive enough to keep listening in. This has happened to me, and I’ve done it to others. I do my very best to not be offended, and when I unfollow someone, it’s my hope that they do the same.
I totally agree with Chris on this one. I follow someone because I like and am interested in what they have to say. If I want to interact with them, I will @ them and it is up to them if they respond to me.