10% is what I consider to be quite a low amount for trading purposes. I personally have like 50% of my total wealth in Bitcoin, from which I use 25% for trading purposes, and the other 25% is meant for holding only. Every percentage of profit that I can make per month is more than welcome as I mainly focus on how much I have made after exactly a year period.
Everyone have their own risk level. For him, it is enough to risk 10% of his capital for trading. And if you are investing, you should not put all your money on a single investment. You should not put all your money to trading too. You should have some saved just for back up or emergencies. And the other amount for investments like trading and stocks.
Agree! You are getting scam in the most HYYIP sites right now because that is really their goal! Unlike trading you are just to have a knowledge to the altcoins so that you can earn pretty lot.And very less risky as long as you know what you are doing in the trading.