“But I don’t think about other people when I’m adding something to my website. My audience is myself.”
I've always thought of the blog section of my site this way. Right now it's the only real section as I've stripped the site back to the bare bones, but when I post links and book round ups or reviews and other things on here, many times it's because I want to remember it. Many people use a service like Pinboard for this, but for some reason I prefer doing so here. And it's been really helpful to me in recent years to think of the site this way, rather than as being for any specific audience.