Tonya Brisnehan:

MLM (as most people know) stands for Multi-Level-Marketing. When you
strip off any stigma involved in it, it’s simple definition is:
"…a business model that combines direct marketing with franchising"
(from Wiktionary Online Encyclopedia). So — it’s marketing with the
right of a franchise for a particular business product.

What’s wrong with that?

As long as the product being dealt with in the franchise is of good
quality and the franchise owners are compensated fairly – nothing.

Many companies are adding MLM to their already-successful marketing
techniques, because it is actually a completely valid, relatively
inexpensive and successful way to get their products into the general
public.