Avoid all services with specific (self made) cryptocurrency all they are scams!

The developers have most of these currencies. If the price goes high sell them and the users can say goodbye their money. Speculators are highly manipulating their exchange rates. There is no cover behind them, there is no guarantee that they will be exchange at any time at the fame Fiat like USD EUR etc price what their purchased. Without exception, all such services are scams, pyramid scheme! People turn their money into these services for their unique worthlessness coins and the developers, and speculators gone the money. It can cause huge loss of value within hours from 100USD within hours can go 50USD and month later 20$ than worth cents. No matter what they promise all these services are scams!