I think it would be good if Wikidata would reject the attempt to create additional items/properties with the same name and description as an existing one.
|Open||None||T96040 Wikibase special pages (tracking)|
|Open||None||T149616 Prevent duplicate properties and items from getting created|
- Mentioned In
- T156144: Suggest possible duplicate entities when creating a new entity
- Mentioned Here
- T44325: Prevent creation of items having the same sitelinks (duplicates)
T147143: Prevent Special:NewItem from creating items multiple times (double-submitting)