Have you ever played a game without a robust Wiki available when you needed it?
If so, have you ever thought about doing something about it?
It is an interesting dilemma all around. As a developer, you cannot really be in the business of creating or maintaining your own Wiki. That would be kind of a full-time job, even if anonymous internet users weren’t able to change the information at any time. On the player side though, you often don’t have the necessary details to write accurate information. Sure, the text on the screen is there. But you are often not privy to the mechanics behind the scenes, and may not even be able to test anything depending on how everything is constructed.
For one reason or another, I have been playing a lot of games lately that have very limited Wikis. Some of that is because they are mods for games still in Alpha, e.g. Darkness Falls within 7 Days to Die, which incidentally is not the sort of thing you could really imagine happening like 10 years ago. A mod of a game in Alpha? Taking the time to write all of that sort of double-ephemeral data seems extra pointless. Then again, I certainly would have enjoyed having access to the information at the time, as I ended up spending 60+ hours with the mod.
Then you have the obscure games like Fate Hunter. Good fun. Zero information. Well, there is precisely one guide out there in the Steam community – and it’s a good one! – but that’s it. Is it worth trying to fill in a Wiki about it? Eh… probably not. Ring of Pain is another sort of low-information indie game that I did end up adding things to the Wiki because I was tired of going back to and forth with a text file of things I needed to remember (“what’s a Shrine of Neglect again?”).
So, it depends, I guess. Or maybe it’s simple: I will add to/improve an existing product, but not start from scratch. Which is probably reasonable considering that every minute I’m doing that is another minute I’m not playing the game I’m writing about. Which is a price I already pay for blogging.