EDITED: Seems like the EA Forum is becoming the place where wiki-style information on EA is being curated, so I'm phasing out the EA Wiki in favour of the EA Forum Wiki.
Isolation got you stuck at home? Help out with the new EA Wiki!
This is a new project. I copied some of the content from the old EA Wiki and pruned a lot of it (as much of it was out of date). The Forum is great for getting the latest updates but not so good for finding out the consensus on a particular subject; wikis are better for driving this.
I'd love for the EA Wiki to become the go-to source for EA knowledge. Sign up now!
I am skeptical if making an EA Wiki is better than uploading EA-relevant articles on Wikipedia (https://www.wikipedia.org/).
There are many other arguments for why it wouldn't be a good idea, but I want to focus on the target group.
Case 1: The target group is EAs. In this case, the EA Wiki would probably host in-depth/comprehensive knowledge that is not available on places EA's normally visit like 80000hours.org or effectivealtruism.org. It would serve for questions like "Has anyone in EA ever talked about __?". As of now, most of this "in-depth" knowledge is present in the form of EA Forum posts and comments. Most of the content on the EA Wiki would be copy-pasted from the EA Forum. The EA Forum is well-searchable, and it already fulfills this purpose. For long-run things like "how should the EA content be organized in the long run (e.g. 5 years later)", an EA Wiki may be more promising. But, for the reasons written above, it is difficult to see any real use of it in the short term (e.g. 1-2 years).
Case 2: The target group is non-EAs. The EA Wiki wouldn't show up in search engines. Period. Wikipedia articles appear much more easily on search engines and are linked to by other Wikipedia articles. A much better idea would be to upload EA-relevant articles on Wikipedia. Also, there is more scope for extending EA to other languages since Wikipedia supports articles in a 5-10 other languages.