With a private seller, there is no duty of confidentiality, so the seller can tell one buyer what another buyer is bidding. Buyers do not trust the process so there is no bidding war. You negotiate on your own: When you do it yourself, it is difficult to know what a fair price is for your home.
Linguistic chauvinism is the idea that one's language is superior to others. For a few examples, the Greeks called all non-Greek speakers barbarians, the French are only at home where French is spoken, and English speakers consider the ability to speak another language a social defect.
The term linguistic variation (or simply variation) refers to regional, social, or contextual differences in the ways that a particular language is used. Variation between languages, dialects, and speakers is known as interspeaker variation. Variation within the language of a single speaker is called intraspeaker variation. Since the rise of sociolinguistics in the 1960s, interest in linguistic variation (also called linguistic variability) has developed rapidly.