I'm giving you this idea, because it's an easy way to earn without effort. You just send your money there and get income from it. There are another methods like trading, but it's risk.
But these kind of immediate money profit will not provide a profit as expected or you may loose the bitcoin by that. better and best way is hold your bitcoin and make profit or we have enroll in any good signature campaign to get the good payment every week.
Yeah, that is what I mean. Immediate money only comes from fraudulent schemes which the risk to lose the investiment is much biggest, like the Ponzi and HYIP schemes. Some people can double their money with that, but it's not a good method and the most investors lose money.
Signature campaigns are good as you said, but aren't a investiment method to earn passive income.