The only bad thing of a signature campaign is that you have to realize that it will takes a long time until you have a whole Bitcoin or something.
Yeah signature is the best to earn free money and really it well take you long months to get 1 btc if you just really on it thats why we must need to find reliable source of income to get more profits, and the best thing to get it in tradings as many people selected this program because really it is the most trusable site that we can earn money and other one is doing some micro task and big project by having programming works in service section.