#Wikidata popularized #SPARQL to query RDF by providing open tools and data to play with. I guess it will be similar with #SheX to validate RDF (to some lesser degree because validation is less fun). See https://www.wikidata.org/wiki/Wikidata:Schemas for details
@nichtich I had smilar thoughts in the past and Wikidata's use of ShEx was the reason @steffenr42 evaluated it first when starting a SKOS shape (https://github.com/skohub-io/shapes). In the end, we chose Shacl because the tooling is more mature and made implementation much easier...