| Snipre added a comment. |
Nudging is not sufficient: no saving should be possible after the change of statement value if no changes are done in the reference section. Most of the references used "retrieved" property as part of the reference so this property has to be updated for each change of the value.
The obligation of changing the reference when changing the value is a key point in vandalism prevention. First this implies several modifications so lazy vandals won't be interested and then several modifications can increase the detection of the change and increase the probability of a check.
The best solution would be the impossibility to change a statement once published. This rule would have a real impact as WD reliability improvement, as people can trust data imported from authoritarive sources by reliable contributors. Using filters based on sources or import dates, it would be possible to always the same data, so if the data was checked once this allows a trust for the future without a permanent monitoring of item's modifications. Vandals can add wrong statements or even delete true statements, the choice of displaying one WD data in WP will always be respected.
Cc: Snipre, Aklapper, thiemowmde, adrianheine, Snaterlicious, Liuxinyu970226, Lydia_Pintscher, Lahi, Gq86, GoranSMilovanovic, QZanden, LawExplorer, Wikidata-bugs, aude, Mbch331
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