In the past people have expressed interest in contributing to IFWiki, and I know AndrewS had wondered what sorts of tasks need to be done.
Fixing dead links. Many of these can be detected automatically, using a script, and the script also checks to see if there’s a Wayback machine link. I’ve run the script a handful of times already, so I have a list of links to be fixed. It’s a long list that could easily be split among several people.
Updating technical pages.
Filling in missing info on competition pages. For instance, I don’t know if the Ectocomp results ever got added. And on the IFComp 2016 page, the platforms of the games are not listed. If you haven’t made these sorts of edits before, you can check out the style guides for comp page and game listings; they’re very specific.
If someone wanted to take over doing regular IFWiki backups, maybe 2-3 times a year (this requires Python 2), I could re-install Python 3 and start using my other IFWiki scripts again.
There’s likely more to be done, but these are the things that are coming to mind at the moment.