Ofcourse yes how can you make a big profit when you are not to start with small investment. In first ofcourse as newbie I need to invest small thing then if that site is good then I will invest big next.
yes you are right everyone need to take start with small investment to check the investment site because the small investments brought some awareness in the investors, and after which they will be able to take decision wether to invest more money or leave that site.
If you keep on checking like these, you may end up summing into very big amount of bitcoins over long course of time. I agree small investments for testing purposes still we should go for small investments after some studies. Otherwise, many small amounts may cost you similar to only big scam consequences.