" 
 :::::::""What the common man's meaning of Hindi is"". That's an argumentum ad populum, a fallacious reasoning, and a reference to supposed common knowledge. Common knowledge means nothing and the common people are not experts (read the links). As for ""Standard Hindi"", you simply misconstrue what that means; the ""Standard"" is there simply to disambiguate which Hindi we're talking about. The ""History"" section is actually a very short summary of the standardization, exactly on-topic, and the essentials of the grammar and phonology are simply those shared with other forms of Hindustani, so pointing the reader there makes sense.   "