Came across a use case this past week with a client doing some machine learning and adaptive querying with Google APIs and they wanted to leverage Wikidata to help build a classification system in the domain of Education & Science (virtual learning in these Covid-19 times seems to be quite popular!)
But I noticed that YouTube Category IDs are not mapped surprisingly!
Wondering if Google also sees some helpfulness here for the mapping in general as well.
Regardless, I think it does help the world and application developers (and students!) can then create some pretty neat mashups I think.