Over promised
Under deliverd
Eferium is just an experiment that didnt work out.
Ethereum is premined scam, if you helping Vitalik and foundation to sell it, you also scamer.
In that sense then all altcoins are scam and who ever is helping them are scammer, even you are also scammer as you are promoting cryptocurrency which in your sense is a scam and you are promoting it so you are also scammer.