How about a per-user optional pop-up, the default for which can be centrally set, hooked into the save which asks "Is this a minor edit? (No new revision number)"
Sorry if you don't like the option names - my aim is to express the idea, not design the solution :-) jspwiki.properties MinorEditPopup=[Never|Always|UserPref] UserPrefDefault.MinorEditPopup=[Yes|No]
