If I have 0$ at the moment can I make 100$ in 2 or 3 months? How?
What if I deposited 20$ .. Can I make them 100$ in less time?
It is not impossible to make money without investment, if you have the skill, you can earn money without investing. In this case, you have to demonstrate what the skills are.
I think it is not difficult and not easy. He has member rank of the forum, he's just diligent and involved in campaigns that can help him accomplish his goals.