Some members sending me pm about trading and other services and other bitcoin talk service.. how can i know this member asking me real or want to scam with me...
Even they're sending you a private message dont transact with them this is the best way to dont get scam.Even they're a trusted one they can scam you too.Just ignore them if you feel ts scam.And get some advices or confirmation from the others members.
in this case if they're offering you things which are too good to be true then you must avoid and it's better to never make a contact to them even if they're pm-ing you first.
even if some of them may have real intention to offer what they have but risk is a risk and just don't take it if it's unnecessary.