Who do you write for?

Kent Newsome has some really lucid opinions on the blogosphere and the misconception of it's importance and penetration. He also challenges people to write a paragraph answering the question: "Why do you write a blog and who do you write for?". Here you go sir:

I am surrounded by people who, for the most part, don't share my interests, so I write to express my otherwised buried thoughts on those subjects I care about. I write to challenge myself - can I focus and hone this swirling cloud of ideas into a cohesive set of statements? I also sometimes write to educate people, or at least contribute to an education on things, to broaden people's horizons. I take information from the net ALL the time, I feel it's right to contribute something as well. And finally, I write to explore and develop my own creativity. My profession - structural engineering - doesn't lend itself to this type of creativity (it has its own, completely different form of creativity). So if I look at those reasons, and their associated targets, I'd say I write mostly for my own selfish purposes, with a dash of 'helpfulness to others' thrown in as well. I would think it only logical that the people reading my blog on any kind of regular basis share some of my interests, but I don't think I target them in my writing. This is mostly a cathartic activity for me.

Curiously enough, I tend to google definitions all the time - I hate using a word or term incorrectly - it's so unelegant, and when I checked on "cathartic", wouldn't you know, the first ten definitions dealt with relieving constipation.. Hmmm...