If A Blog Falls In The Forest...

You know, the two rules of writing are to write what you know, and to write to your audience. Of course, those are often incompatible. It's hard to know if your audience has any interest in what you know. Then on the other hand, you have blogs like this, where, lets face it, odds are no one's going to read this. So who do you write to? What do you write about? What kind of tone do you use, what references are acceptable? And most importantly, does it even fucking matter?