The pronoun "one" has mostly fallen out of use ("One starts to feel...") and the usual substitute in modern English is "you". It doesn't literally mean that the writer is talking about the reader.
I think in spoken English this is the case. However, using the more formal "one" in writing, even on a blog, is a good way to clear up any misunderstanding a reader might have. Though the use of "you" is more and more accepted in everyday situations, clearly the use of "you" instead of "one" caused some readers of this post some problems. In writing, one should try to be as clear as possible to get one's point across to the widest variety of readers, unless one is trying to obfuscate one's point on purpose.
kragen's point is that most people don't know how or when to do so. I think most of us would agree that it would be best for everyone to suddenly get much better at written English, but it's unlikely to occur.