Well...sure, that's fair, but I'll bet these are mostly people who are interested in the subject and trying to learn more about it. They probably used a smatter

Well...sure, that's fair, but I'll bet these are mostly people who are interested in the subject and trying to learn more about it. They probably used a smattering of those resources to pull their examples together, and plan on using it as a foundation for more exciting things. But they also probably weren't entirely satisfied with the documentation they found, ran into some stumbling points that took them too long to resolve, and feel like maybe people could learn from their experiences and avoid those pitfalls. That's usually my motivation for writing a technical blog post. Sure, you might not be able to phrase it in a more succinct or comprehensible way than the tutorials that you used, but you can at least collate them in one place for others. And if nothing else, the process of putting together a detailed set of instructions to reproduce your efforts definitely helps reinforce your own understanding of the subject matter. You put "blogs" in quotation marks, but then it kind of sounds like you describe a blog.