Yes, you should believe in BTC, although I generally see it as a payment system and not as an investment.
Absolutely agree with your point, i am also believe in bitcoin because the payment system in bitcointalk is the best, and i can call it is a trustful campaign. Secondly, most of the investment sides are traceable, but i hear to my friend some people are doing wrong with it, actually he give a huge amount to someone and he promised him that he will give him double amount but that all are fake.