The first example is straight out of the oxford dictionary link that I posted. It's at the bottom of the page under "Informal, dialect".

https://en.oxforddictionaries.com/definition/them

A couple of other examples: 1. https://www.youtube.com/watch?v=GB33z9xoSw8&feature=youtu.be... 2. https://www.youtube.com/watch?v=elUsB4y5RVk

There are plenty more examples on Google.

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I want to say I take your point. I wouldn't use this in formal writing, but as far as I can tell this is an accepted western way to emphasise something.