To be frank, most of the tutorials on this wiki are very low-quality and unorganized. Just now I hit the "random article" button until I got to a tutorial; it was How to get the number of days between dates. So let's use that as an example.
It's not too badly written, so that's good, but look at it from the perspective of a new user. Who wrote it? What should I know before reading it? Are there any articles that I should read before it?
If I navigate to "Tutorials" in the navigation bar, I get. An alphabetical list of tutorials. It doesn't say who wrote them. There's no indication of a proper order to read them in. Someone who already is pretty familiar with Petite will be able to recognize articles they might be interested in, but a new reader won't know where to start.
I'm not trying to be offensive, just blunt - this is a bad system and change is needed. My goal is to put together a legitimate manual, organized into sequential lessons, that is clear, concise, and easy to navigate. I am hoping that new users will be able to find the "Learning Petit" series and simply move through those tutorials. Now, I could include a link to the next lesson at the end of each lesson, but an advanced user who wants to skip straight to lesson 7 would have to click "next" six times. Or... we could add one new category.
I hope you can take a look at what I'm writing and see that the quality is good and worthy of a single new category to make it easy to navigate the tutorials. I am about to post my third article and will have at least 2 more, probably 5 or 6 more. The categories do exist for a reason and my category would be completely unambiguous; there would be no question of what articles did or did not belong in it.
Those are my thoughts; if the community/admins don't agree yet, you can wait until I've finished more articles. I'll probably make a suggestion at the suggestion board in a few minutes.