I think you are implying that people who got scammed are borderline 'stupid', which is not a good thing to generalize people of. Instead of seeing them as such, it is more appropriate if you could refer to them as 'misinformed'. Remember that all of us were once newbies. Though not all of us experienced getting scammed, there is at least one point in our careers that we made mistakes along the way.

With this kind of setting, scammers would always choose to take advantage of the people who are misinformed. They tend to create fake giveaways that are pleasing to the eye, fake accounts, etc. Though this may seem obvious to experienced users like us, it may not to newbies.