So if I may ask, how can we identify this kind of fraudsters?
Scammers are everywhere and it is rare to identify them. Your neighbor, family and even loved one can scam you on one-on-one before you realizes and they could also play anonymous in the sense that you would not even know that someone closed to you is responsible of you victimization.
In other to stay away from scammers, you must not trust anyone in both online and offline too easily, always make your research and verify from different sources before keying you to where you feel some phishing intentions.
Be aware that scammers would disguise their selves to an extend of believing them more than a trusted one that is we need to consult at all times of being amidst learning new things about cryptocurrencies.