Top Reasons People Unsubscribe to Blog Feeds
First the reader helps you cope with information overload. Then you order too much and it becomes just as overwhelming as it was before. I've never used a blog reader long enough to need to unsubscribe to a feed, but I can definitely understand these reasons for doing so...
Too many posts (the post levels are too overwhelming) - 37 Infrequent Posting (or the blog is effectively dead) - 29 Partial Excerpts Feeds - 25 Blog Changes Focus (too much off topic posting) - 23 Too many posts that I see elsewhere (Redundant, Repeated or Recycled News) - 19 Uninteresting Content - 16 Irrelevant Content - 13