I am just new in joining PTC sites and I heard from someone that PTC sites are risky. do you have any experienced in doing PTC sites? if you have, do you find it risky? if it is risky what are the risk involved?
It is not risky if you don't invest money. But you won't earn fast too if you don't invest. Just always remember these:
1. Invest only on trusted sites
2. Invest only what you can afford to loose.