As was pointed out by Darrell Anderson, a documentation review board is needed. I have started a list on the Etherpad. This list is currently rather incomplete as I have not yet gone through any of the documentation, and I therefor do not have a thorough knowledge of everything that needs updating.
The list on the Etherpad should list known changes that need to be made to the documentation, and should allow anybody interested in maintaining documentation to claim the documentation for specific apps that they use on a regular basis.
The list of apps that is on the Etherpad is currently incomplete. I currently not have time to go through the packages to list all of them as I have some stuff in real life that I need to do, so the first several items on the apps list are just categories copied from the source downloads page. Feel free to expand them if you can.
If you do not trust your technical writing skills, perhaps you can simply check the docs for apps you are interested in and report needed changes that you see.