for me, my problem at bitcoin is that there are a lot of scammers in investment . when you buy bitcoin whats next getting scammed? only lending and trade exchange will give you profit in bitcoin nothing else.
nope i guess you are wrong mate lending and trade exchange can cause you to lose money also dude. If you want a say earnings that signature campaign would do well im just saying tho
Gambling, to some people, are also a very good profit scheme. Only to those with very high luck though.
Managing faucets can be very profitable too, as long as you are a good manager.
Offering services or selling goods for bitcoins is just as well as signature campaigns. It lets you earn amounts of coins with ease.