A recent survey by Pear Analytics, "Twitter Study - August 2009", found that 37.55% of tweets were conversational, and the remainder weren't including 40.55% of "pointless babble". Is this a case of more being less or a reflection of reality?

Interestingly the report attributes 5.85% of the traffic to "Self-promotion" which one may think may be a larger porportion than that!