Thanks!

I appreciate the information about double negatives.

It's interesting to learn that double negatives were an accepted grammatically feature and may still be a grammatically, correct feature of Indo-European languages and other languages, including some African languages.

Still, I think that most people would agree that it's best not to use double negatives in academic and other formal English communication.

In the same token, it shouldn't be acceptable to chew Bazooka Zooka Bubble Gum during formal occassions, such as weddings. But that doesn't stop some people from doing it.