Stack Exchange Data Explorer queries are licensed under cc-wiki with attribution required, like user contributions on normal sites. Yet query pages on SEDE do not have any user attribution whatsoever. Queries should link to their author's profile, like posts and post histories do. At the moment, SE displaying SEDE queries is technically illegal.
This is now complete ... you get plenty of attribution.
The query show page shows who created the query and who last edited it.
The edit query page shows who created each revision.