1. Privcy
Privacy was a free airdropped coin which was distributed freely over the community for helping promoting the project. Later, they decide to reward more to the holder of the coin in airdrops. The more coin you hold, the more airdrop coin you get. Newbies started to buy coins for getting more airdrop coin and DEV were selling their coin. I am sure they had a lot of fake accounts participating in the Airdrop. Can you believe they scammed people in such a way? Now, the project is died, 24 hour volume is- $620 which was less than $100 couple of weeks ago.
2. Profish
Profish was an ICO which came into the exchange before the bounty end. They were listed in mercatox and used to have some fake volumes. I don't know what happened to their ICO but they sold a lot of coins through mercatox and later, the price is now 1 or 2 satoshi from 650 satoshi. This is also a dead project. They scammed people.
It is great that you want to warn the community but your description is not that precise..
1. Here you describe that they had an airdop program, this is not uncommon. Many coins has this, this does not make a scam.
2. Again common scenario in many ICo cases, listing ,fake volume and dramatic price drop. I know this situation also for legit projects.