Scammers will never stop to exist until we are all knowledgeable enough to understand that there is no such thing as invest X and get a 30 to 100% weekly or monthly. Because that's exactly the strategy scammers now use this days.
Traders should first be able to identify the scam to avoid it. They should know there is no such thing as free lunch. There are different types of scams that are propagating in the market and traders should be aware of them.