Read the the white paper
* Contains something like refer or invitation system, possibly scam
* Wouldn't work without the bitcoin part in the real life, possibly scam too
* Copy of other projects, scam
I tend to agree with you, however:
- even UBER and other "real life" deals are offering referrel systems.
- A disruptive, very inovative project on the blockchain would probably not work without the bitcoin part
- After you see some succefull business you tend to have "similar" projects. Litcoin is a copy of bitcoin and it is not a scam.
However to the average guy, with less knowlegde your advice is good, and could keep people away from dirty scammers.