This is the specific question I'm referring to:
But in general, I don't see how the Europe tag is very helpful when applied to just one country in Europe. It would be like tagging a question about the US as "North America". I think the Europe tag is only relevant if the question is talking about travelling between European countries, the Euro, EU visas, and things that apply to a larger area of Europe. A question just about Spain (or any other European country) is not a question related to the topic of Europe.
Just my 2C, thoughts?