If we go down the "majority" theory, then education becomes irrelevant, since pupils outnumber teachers. We should all probably stick to babbling the way we do at birth...

I'm afraid that just happens with English native speakers. In Spanish, no matter how many people say something that is ungrammatical as if it was right, unless the official authority (the Real Academia) says that it's right, it remains wrong.

>I think many people would say that if a majority of native speakers think something is correct, it is.

That's just how English works. For most other languages, learned people teach illiterate people how to properly speak and write in schools...

>Living languages change.

But mistakes and illiteracy remain...
Actually, the most illiterate people are, the more children they have. Illiteracy is thus there to stay... Shall we all speak like the worst speakers ?

I've got the same problem with "Belgian" French or Dutch. They don't mean much anyway, because languages don't stop on borders. "Belgian" is an oversimplification. If you take Dutch, for instance, it has a "Flemish" dialect, that Dutch people simply qualify as "Belgian" although this Flemish dialect doesn't apply to all of Belgium (where there are other non-Flemish dialects of Dutch, such as those in Antwerpen, Brussels or Limburg) but also spans over Northern France and a bit of Southern Netherlands (that most Dutch people just pretend to ignore...).

Similarly, I'm convinced many "Argentinian" expressions don't apply to all of Argentina, but probably apply to parts of Uruguay as well, if not Chile or even southern Brazil (where they also speak Spanish in some cases)...

So my view is that it is better to flag a sentence with a dialect name, when you know it, rather than with a country name, which is rarely relevant, even if most Dutch speakers think otherwise...

In a few instances, native french contributors were convinced that a few of my sentences that I collected in different areas of Belgium were incorrect French, just because they never heard or read it before.
In a few cases, I cannot even easily prove that they exist in a written form because it is nowhere to be read on Internet so far, and I was the first one to write them down there, although many people use it.
In a scoring system, these sentences would end up with a zero score, although they are perfectly correct sentences actually used by speakers of certain areas.

The Spanish-German dictionary by Pons uses the tags: Americanismo -which means presumably all of South America, and Cono Sur- which would be Argentina and Uruguay.