Thanks for those questions.

Just as clarification, I'm talking about hiding revisions with the effect
that the revisions are greyed out in the history, but that admins can still
see their content. But I realize that oversight policies (the effect of
oversight is stronger) may be more prominent, and that perhaps the
ecosystem of different options should be considered in such a question :) .

Thanks Anne for clarifying terminology - I am mostly aware with the
terminology we use in Dutch, so may mistranslate some things.


On Mon, Jan 14, 2019 at 10:13 AM Risker <> wrote:

> I think one of the issues here is that we are not all using the same
> terminology.
> "Hiding", on English Wikipedia, is generally reserved for some weird
> extensions that had to have special features built in because
> revision-deletion, deletion, and suppression did not work with them.  I
> think all of those extensions are now disabled on English Wikipedia.
> "Revision-deletion" (which has the effect of removing a revision from the
> view of the reading public and users who are not administrators or
> equivalent) or complete page deletion is used for most copyright violations
> on English Wikipedia.  Copyright violations should not be publicly
> available, since it does not meet even the most basic requirements of edits
> to the project; I have a hard time seeing why any project would leave them
> in the page history, since that is the equivalent of leaving them in the
> project.
> "Suppression" is an even higher-level form of revision-deletion that
> removes the revision from the view of everyone except oversighters.  It
> replaced the old "oversight" extension in 2009, and it is my understanding
> that all of the revisions that were historically removed using the
> oversight tool have now been returned to page history and suppressed.
> (There are some exceptions.) Suppression is used on English Wikipedia for
> most personal information, which can include anything listed in the WMF
> privacy policy.
> There are variations in the use of the deletion/suppression tools: for
> example, since 2009 we have been able to either "delete" or "suppress"
> usernames and edit summaries that are highly inappropriate. The ability to
> "suppress" usernames is sometimes used when someone edits while logged out,
> not realizing their IP address will appear in the history.
> I suspect that English Wikipedia has lower thresholds for both
> revision-deletion and suppression because it has historically been the
> project that is most abused, sometimes in ways that I'd be hesitant to
> publicly describe.
> Risker/Anne
> (English Wikipedia oversighter)
> On Mon, 14 Jan 2019 at 12:29, effe iets anders <>
> wrote:
>> Hi all,
>> This is one of these things that seems particularly hard to find, so I'd
>> like to pick your collective brains on this:
>> What are the various policies across our little universe on using the
>> 'hide
>> version' functionality to hide historical versions of articles? I would
>> especially appreciate it if you could elaborate a bit on how it's used in
>> practice with regards to privacy violations (what is the threshold of
>> private information that would justify hiding versions) and copyright
>> violations (when do you actually hide the versions, rather than just
>> remove
>> it from the current version and leave it in the history).
>> Are there any global policies on this? I think not, but always better to
>> double check :).
>> Best,
>> Lodewijk
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