I was kind of thinking along the same lines as the OP until I read your comment, in particular "It’s about being able to share ones ideas and document your interests". I really like the idea (and it seems obvious to me now) that you could use a personal website as a documentation hub for various things that come up and that could be useful to others. Ha! The original point of the internet. I might have to set up a site now.

Hmm... let's call it a Personal Open Document (POD) or something like that.