We can't alert all the time, which scam we know after something impairment. I saw some ICO which offered to hunters, to receive reward have to pay!!
it's hard to know which coins are really good or not, because it's almost the same.
be careful so that you can be more careful when doing or choosing it.
smart people are good at doing anything to cheat so they can make money quickly.
You must understand the various things about the project to be chosen so that you can find out the bad.