| daniel added a comment. |
@Strainu defaulting to +/-0 was nearly always definitely wrong. +/-0 means ABSOLUTE precision. That does not exist for any measured quantity, only for definitions and exact counts.
Omitted bounds does not have the same semantics as +/-0 at all. A bot is going to change many (not all) instances of +/-0 to unbounded, because +/-0 was abused a lot on wikidata to prevent the uncertainty bounds to be displayed. The same bot will also change many (not all) +/-1 quantities to unbound, because +/-1 was the old default.
In any case, please DO NOT use +/-0 as the default for value imports, ever. It's semantically wrong in almost all cases. Always has been.
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