Another encouragement for scammers is that the scammed don't seem to learn.
There's an Einstein quote along the lines of "Insanity is repeating the same behaviour and expecting different results".
It applies in Bitcoinland as well as irl.
Look at the number of victims of PB who have gone straight out and "invested" in other totally unverfiable, too-good-to-be-true scams waiting to happen.
Even worse, they are so far in denial that they actually defend these rip offs, identify in some way with them and attack people who are skeptical.
Yeah, scammers may be the hammer, but the serially scammed are the nails.