About [[MediaWiki:Wikibase-snakview-variation-datavaluetypemismatch-details/en]]
The wording in this message is extremly weird and confusing.
Sorry, but it is accurate. I am not a technical writer and we have no vocabulary which maps those very technical terms to more user friendly simplifications. So as long as we don't have such a vocabulary it would just be harmful if everyone writing those messages would invent his or her own vocabulary. Inconsistency over messages is probably even worse than using the accurate technical terms.