I've noticed you've been doing little bits here and there around the wiki. If you want to make bigger edits that are more than just little changes to existing pages, you should check out the Category: Stubs. For most of them, any correct content is better than no content and you'll have a lot more free rein in making them. Obviously, you ideally try to match the style of existing pages but you'll have fewer people looking over your changes.
You can also try the RimWorld_Wiki:To-do page, but you have to be careful there - there are changes listed on that page to be added that have since become outdated themselves, so any changes should be checked with the game.
If you're happy doing what you're doing, that's fine as well, but I thought I'd give you the option.