Nice. The wiki certainly needs more active contributors.
Apart from the guides, already existing sections such as Weather, Noise or new ones about "hidden" stats such as thirst, hunger, stamina, etc are sorely needed. Not to mention either a new page or a whole section devoted to the current temperature/warmth system and its effects (frostbite, etc), which gets asked over and over again. Ideally, that would be done with someone really familiar with the code, so the information presented there isn't purely based on anecdotal evidence.