As long as you are willing to lose your money because in trading it is hard to trust if you can get your money back.
Yes, this is the most big thing you should know in trading, be ready to lose your money any time you trade because you do not know if we were scammed by people.
Scammed? i think trading is always depends in you how you manage your own ways to make a profit in trading altcoin and bitcoin..
You can be scam if you buy an altcoin without using escrow.. or if you buy a shitcoin that there is value right now and sooner it become dead and no one will buy it because it is scam coin.. many altcoins out there that there is scam coins..