They will only take your money if you invest in them. I have not seen anything wrong in trying this out. If they actually pay, it is good for you. If they don't, no hard feelings. You have already believed that the site does not pay and it will not worsen the case if they do not. I have withdrawn from a mining site twice and I thought I had found the real one. It later closed down some days after. There are no risks involved if you do not invest.