How are they scams if they are actually distributed as proposed?
You just don't get it do you.
Even if 1% of all a countries' residents use Bitcoin (which is greatly overestimated) ....
Even if 10% of those bitcoin users hear about that coin and are prepared to send their private info to some strangers ....
That still leaves 49.9% in hands of 1 person to dump when the time is right and 'move on to other things' read disapear.
Auroracoin
https://bitcointalk.org/index.php?topic=505534.0