Currently the wiki app that appears on the Community home page lists the last 5 pages that we edited. Sometimes these are just a series of sub-pages of the same topic, or of little overall interest, and it really doesn't help to have 5 very similar or uninteresting pages given priority display just because they were recently modified.
Some method is needed to pin, promote or suppress pages, child pages, or decide (intelligently, Watson?) between major updates that deserve prime placement and minor ones that do not, especially if parent or peer pages are already being displayed.
Could also be manual, similar to "Important Bookmarks". A check box at the page level could be used to signal any one of...
1- PIN me to the main page
2- Post me to the main page if I (or any of my children) change
3- DON'T post me to the main page, even if I change. (Could be used with #2)