SPIN TAX... what is it?

I have been hearing so much talk about spin tax. However, I cannot find anything online about it? I don't know why?
Would somebody be so kind as to explain to me exactly what spin tax is PLEASE? It seems that it has something to do with Instagram comments?

Thanks!

"Spintax is the format (or syntax) that is used by various software spinners and article submission sites that create or use spun articles. There are various spintax formats depending on what software/services you use."

example: My name is {John|Daniel}.

Now this will create two sentences:
My name is John.
My name is Daniel.

Red this for more information: http://umstrategies.com/what-is-spintax/