If you are really looking to find a scam, the elephant in the room is Dash.
The dev premined boatloads due to a 'mistake' and he didnt fix it because the community was cool with it

That seems totally legit.
I like how the Dash [ANN] thread's cult enforcers are so quick to attack anyone who fails to cheer loudly enough for their insta-mined, completely centralized scam coin and associated Masternode HYIP.
The way the DashHoles report and remove on-topic posts that aren't sufficiently positive really makes me believe they are a mature, stable community with nothing to hide.