They are not evil, we really need some stable coins on this market. It is a pretty great thing if you want to stay out of the market, but you need you funds to be ready to invest directly from an exchange. The only thing I do not get, do we really need 10 stable coins?
Stable coins, of course, are very useful for working with our cryptocurrency. It would even be very good if we had stable coins linked to our national currencies, and not only to the currencies of the main world states. Today, using cryptocurrency for ordinary people is still difficult and stable coins, along with other functions, can partially solve this problem.
If the stable coins were not useful, I guess would not be as much volume (look tether). On the other hand, there is also possibility that they may be scam, and the majority is afraid.