Some of us have learned these things to experience. We could easily stay away from scammers if we don't trust people easily. Also, we must be keen and observant about people's intention around us. We should do some research before doing a certain step like choosing an exchange or a trading site. Being scammed is frustrating so we should protect our earnings.
True ,some of us have learnt the lessons but still there are people who are being scammed ,so spreading a small word could save somebody's hard earned money !
Agree with you, but those who are still be scammed or be scam even after reading how threads like this can help, is purely greed and nothing anyone can do for such individual. When one is greedy, you are prone to scam, as the scammers will always provide you with bogus profits that's attractive in order to scam the party.