Board Thread:Support Requests - Community Management/@comment-13918697-20131022085448/@comment-34029627-20131022121202

First of all, why do you want to delete these revisions? Is it just because they contain vandalism, vulgar content, or some sort of nonsense? If so - I'd leave them. Transparacy is always the best policy - censoring petty vandalism and the like by deleting past revisions is not really worth the time or effort. It's unlikely that any average viewer of your wiki is going to dig through the page history, so there's no harm in leaving it.

If there is personal information (phone numbers, full names, addresses, etc.) in an edit, however, this should generally be hidden from view. In this case, the best course of action is to ask staff to use a tool called revision delete to hide the info from everyone. However, access to this tool is very restricted and staff only really use it hide personal info - so don't go bombarding them with requests. Penguin-Pal is correct about VSTF having revision delete as well - but we are even more stingy than staff in its use and do not take requests like staff do.

In addition, deleting long pages (in terms of revision history) and then undeleting them can be very taxing on the server - in fact, many long pages cannot be easily deleted via Special:Undelete (for example, c:cod:User_talk:Callofduty4). They usually are better off being undeleted via the API - but that can require a decent amount of work to pick out the revisions you want.