Well, i think it is becoming increasingly difficult for scam brokers to run business , nowadays there are stringent rules imposed by the SEC for anyone that wants to open a brokerage, you have to have a block account and an active liquidity provider before you will be allowed to operate.
also there's a widespread informatuon on how to spot scam brokers, unless you are a newbie to the internet but mostbpeople can easily dig out fake brokers by using different methods like social media , who.is profile and general check up on the founders, it is still good to enlighten people though.