With this point I can say that this is only made for the people who has got big bucks in the deposits. Also, I am good holder and I will never accept myself selling the BTC and top coins so quickly as you have mentioned in your tips.
the truth is Margin created for them who want to gamble.
nothing more than that.
Trading is a process when you need to show your skills and minimize your risks while in gambling you are relying on your luck from the very begining. If you concider margin trading as gambling then you should probably never try yourself in this field.