Why does this contain half the world?

Understood. Thanks for letting me know!

Hi, I was following the directions here:

Things like a sport are never directly linkable from wikidata/wikipedia tags - they can be linked in some cases from properly prefixed secondary tags - and in some should be removed.

For example subject:wikipedia to link subject of a sculpture - wikipedia tag is for linking article about sculpture itself, not about what it is depicting). And name:etymology:wikidata links Wikidata entry that describes source of name of a given object.

See osm.wiki/Key:wikipedia#Secondary_Wikipedia_links and osm.wiki/Key:wikidata#Secondary_Wikidata_links

In some cases these links are utterly invalid/mismatching/hopelessly generic and should be rather removed.

please send a message to osm.org/message/new/Mateusz%20Konieczny if anything is wrong with this listing or it causes people to make bad edits

I'll be happy if someone can validate my edit and my assumption