You and I don't disagree in the least. I never claimed as a publisher that I didn't want to write to a specific audience, just that I didn't want to write to a specific platform. The audience I want to reach doesn't hang out on just one reading platform unfortunately.

You use one single web browser when you use twitter, facebook, blogging, email, buzz, and HN, don't you? You are standardizing on HTTP and HTML, but you already knew that.

I am certainly not suggesting only ever using one platform to publish. In fact I specifically mentioned 3 as a strawman that I might use (flickr+twitter+blogger). They serve different writing styles, but are not necessarily different audiences. My wife might be interested in following all 3, you might only be interested in my blog. That makes sense.

In the analogy to the internet, there are a million ways to run a website: apache, frontpage, nginx, blogger, geocities, angelfire. Yet, these websites all work in the same way at some level. I can read them all in one browser (*mostly), I can link between them, I can crawl and index them, and they all participate in the same DNS system making it easy to find them.

PS: The need to choose a title for a blog post isn't really relevant - there is nothing about blogging that requires content to have specific titles. Some specific blogging packages do of course.