As the blog has matured, I have gradually adopted the practice of adding new information on a topic as a comment on an older post rather than as a new post on the same topic. It keeps everything together and should help everyone (including myself!) find things more quickly.
When the comments on a single post become difficult to navigate, I will sometimes combine half a dozen of them in a new post.
These are trivial problems, of course, and in fact I’m pleased that the blog has lasted long enough for them to arise. I had no idea, ten years ago, how long the project might continue – 840 posts so far according to the site software.