No a little earning is not a dangerous thing indeed it is very essential because its better to learn then earn.When you will learn this buisness properly you will get experience and knowledge which is very much required in forex buisness a person can only be successful in this buisness if he's having some knowlegde and learning about forex buisness.It is a world wide buisness and millions of people are working on this buisness and learning it properly to earn some good profit.