Yes, there are many and we really do not know which one will give us benefits, but seeing the great variety and searching, I intend to experiment, guessing right and making mistakes, until I get used to some of them. Who knows, I might even earn a good capital with the most unknown ones!
Yes, it is a matter of vigilance, and later you will make the right decision for your benefits. The idea is that we all win and that we can help each other. For now almost all cryptocurrencies are still unstable, we will keep watching.