CrystalHaze - This is a very good question.
Prior to all the recent publicity (due to intervention of Bill Ackman), few core-Herbalife victims ever tried to complain. Numerous lawsuits have been filed by 'MLM' victims. These have invariably been settled out of court without the front companies accepting any guilt.
However, the overwhelming majority of fraud victims never try to complain, mostly out of shame, and/or fear, and/or embarrassment. All the most effective frauds try to implicate their victims in some way, so that they will become convinced that they might have been guilty of criminal offence themselves.
Thus, in the absence of publicity, to date, there are few FLP core victims who have ever made a determined effort to blow the whistle. As MLM rackets go, FLP is one of the biggest and most convincing. Like child victims at the hands of influential adult abusers, core- 'MLM' victims often feel that no one will take them seriously or that they were as much to blame as anyone. Also, many FLP victims were recruited by a friend or relative, and in turn, they tried to recruit their own friends and relatives, so this makes it even more difficult to face the truth
Remember, the overwhelming majority of all MLM victims have abandoned their groups within 12 months after losing a relatively small ammount of their time and money. Virtually no one from this main category of short term victims has come forward to complain. Such persons don't know where to go or what to say. If challenged, most ex 'MLMers' will insist that they were involved in a 'business,' and that they made a free choice to participate - no one forced them or deceived them. Some even insist that they made money.
Long term 'MLM' victims are a small, but significant, minority. Often they have to be traced through 'negative' partners and family memebers whom they have abandoned. Far less than 5% of all MLM victims have continued for more than 3 years. They need access to independent sources of cashl, income or credit, as well as physical health and strength, to continue
At this point I should explain that I have personally interviewed an individual in the UK whose ex-partner has been trapped in the FLP racket for around 20 years. This rare witness (who is University educated) estimates that the ex's direct, and indirect FLP, financial losses already total over £200 000. This has been financed by the sale of a share of a property, as well as by going into debt.