Yes, I'm one of those who scammed before and i lost a big amount of money not just my personal money but the money of other people therefore loosing their trust. Its a big lesson learned for me. I lost my credibility to other people and even my friends. I told to myself that i will not join anymore in this kind of scheme scam. I would say that there are lot of opportunities today which is very enticing and promising, you have to be very careful to that. I don't know if you are familiar with these ''Ponzi Scheme and Pyramiding Scheme''. These type of scheme are very dangerous, i guarantee that you will gonna loose your resources in this kind of scheme, and even your friends and family. For your basis on how you will identify if its legit or not, you have to look on the companies compensation plan, how does a company generates an income with this, where does the pay out comes from, try to look its sustainability and if it will last. From there you can figure out what your into.