I guess it's safe to say that members here are becoming more, and more intelligent, and they can distinguish which are scam, and which are not aren't they? Thanks for the catch OP. 
They are openly doing this on telegram and they take a chance to do this here in Bitcointalk, but we are ahead by many years we know the method and we can easily bust them, these methods are recycled methods these newbies find on other platforms and there's a possibility that they have been a victim of these schemes and they find it good or they want to get back what they lose, so they are scamming others to get even.
But one thing is for sure if you are active here in Bitcointalk especially here in the scam section, you'll be familiar with these schemes and you'll learn how to avoid them.