I think in most developed, or for that matter, developing countries, it would not be possible to earn from this forum enough to make a living. For that, and I'm talking if you only use signature campaigns, you'd have to spam, which risks you getting banned. If you try out many other freelance jobs on the forum then maybe that would give a decent income, but its difficult to continuously find jobs that fit your niche. Also, a lot signature campaigns end (run only for a limited period of time), so its pretty hard to make a continuous income.