I am not the person who decides on the rules, I just apply them.

If you want a discussion about the naming rules, please use the appropriate OSM communication channels (wiki, forum, mailing list).

Sources should not be in the "description" tag. There is a "source" tag for this. In addition, it must first be clarified whether the source you are using is allowed by copyright.

I don't know what you mean by the Wikidata tag. Wikidata aggregates data worldwide, regardless of the language in which Wikipedia articles exist. 