User Acceptance of WIKI pages.

Does anyone use their wiki like this:
We use our wiki as a handbook / knowledge base. We need employees to look over the wiki and be happy they understand the content. Basically it is all director signed off.

The wiki offers no reasonable way of tracking where people have been and what they are happy about other than comments / tags all of which seem to be a bad fit.

To this end I am writting a little application that is a "launcher" that has a table of contents and users can click on the links and also say they have read and are happy with the pages. The wiki currently has about 300 pages, but I am expecting it to end up being thousands.

When a user says they are happy with a page, the system will then track if that page has changed and re-offer it to them as a page they haven't signed off.

Just wanting to see if others have covered this, thought of ways to deal with it.
Regards, JAC