Ban accounts with IPs from china, russia, venzuela, indonesia, india, etc = home of the scammers.
Cryptocurrencies are generally suppose to cut through all boarders regardless of a persons origin and not isolating some...and wait a second aren't some of these countries listed here not among the countries that are among the top adopters of the blockchain technology

and besides this banning of ips does not deter users from coming back it just creates other problems like whitelisted countries getting the ban hammer too as VPNs could give users access to the forum.
WE need to get rid of these broken english speaking scammers!!!!!.
Practice makes perfect and with time the broken English could become above average written English