Wikipedia:Attempting to overturn recent consensus

In some instances, a specific proposal is repeatedly made with the same result occurring each time the proposal is made. For example, articles may be nominated for deletion, renaming, or merging, or a policy may be proposed to be altered in a certain way.

Where the same proposal is made repeatedly, and the same proposal is made again only a short time after the close of the previous proposal, administrators closing the discussion may be requested to impose a moratorium on future efforts to repeat the failed proposal for a period of time. A moratorium may also be imposed by a discussion achieving the clear consensus of the community.

However, moratoria should be used with caution, and only within strict limits. Moratoria run counter to the general practice on Wikipedia that any editor may initiate a discussion on any topic related to the operations of the encyclopedia at any time. Generally, a moratorium should not last more than a few months. In any case, a moratorium may not last more than one year from the initiation of the most recent discussion, because consensus can change over time. A moratorium may always be lifted if there is consensus in a discussion proposing to do so.