I do it because it's therapeutic: "Blogging has been shown to be an effective decay-preventive mentifrice that can be of significant value when used in a conscientiously applied program of moral hygiene and regular confessional prayer." ~ Council on Therapeutics, American Mental Association
[The original Crest toothpaste ad, as I remember it, stated:
"Crest has been shown to be an effective decay-preventive dentifrice that can be of significant value when used in a conscientiously applied program of oral hygiene and regular professional care." ~ Council on Therapeutics, American Dental Association]
Related post: The cry of the human heart is "How can I help?"