We typically take the 'nominal' value in the datasheet's electrical specs table for parametric specs. If the manufacturer is trying to be sneaky by providing the value with perfect test conditions to improve the numbers, we still give the value because there's no other way to give a credible answer.

However, we saved all the test conditions and similar notes. Maybe we could display the conditions with the specs in the table? That way, any outlier manufacturers would jump out right away.