[disdev]

Definitely a time-sink. And I seriously question its value as a long-tail investment. Even if you use it to document processes or a tutorial, after a couple of years or so it's out of date.

But I think you hit on the right value for someone who's not in the business of blogging: writing out the idea. We can keep ideas in our head, even code things out, but the process of putting your ideas into a blog post is a great way to flesh it out.