A Flock of Tweets, I have no idea what to call them to be quite honest. To me, a flock of tweets, is what you get when your tweet reader fills with too many tweets of no consequence or interest to oneself because you were being polite and reciprocatingly following another twitter user. Although many people use twitter based literally on their “What are you doing?” catch phrase, I think there is a great deal more potential to twitter being used a a real-time communication tool. David Pogue of the New York Times makes great examples of this in my humble opinion. Although I was thinking of a different story he wrote, here is a more recent article regarding twitter.
I would also say I am a little picky about whom I follow on a continual basis. I like to read tweets that interest me and my interests are varied and tend to change as time passes. If I stop following a person on twitter it is typically for no other reason than my interests have changed. But, and I must stress this, I will also stop following a person on twitter if they are the author of a Flock of Tweets, because for the most part to me they are just simply flooding the timeline and consuming space I would much rather see used for tweets of relevance.
To each his own and may you always find a tweet to reply to.