I no so many persons has other major sources of income aside from this forum while some persons depends on the forum to earn a living, so tell me if there was no forum like this how things would have been for you?, I love learning so I'm always here to learn so please share your knowledge and views.
Even with this forum, you still need to have something you are doing aside from whatever benefit This forum provides, this is not an office. At this stage in our society, you need to think more on diversification of your sources of income and go more on getting skilled than looking for quick money. If you use the forum rightly, you will grow in an exponential manner but if you allow the quick money making mentality to could your mind, then you already know what awaits you.
People who consider this forum to be the only place to earn an income are basically having the wrong mindset because there are no permanent earning sources in the forum. If we talk about bounty or signature campaigns, they are not a permanent way of earning money, because even if there are new campaigns coming out every now and then, it doesn't necessarily mean that the same will happen in the future, the trend of signature and bounty campaigns might end some day.
So, such people really need to find other ways of earning an income before their only source of income starts fading away and then they get lost and get in trouble because they won't have any money to feed their families. As you said, a person in today's world needs to have more than one source of income to survive.