Everything depends on the rates of your work and specific campaigns if we talk about bounty on the forum, then they give more than for social networks
It depends on the quality of your works/post in this forum, devs of ICO bounties wanting to hired somebody has outstanding quality post and they offer good rates, but in OP i think he should need to prove more to impress campaign managers to hired him. I recommend not too greedy to earn huge profit if you are in lower rank.
I'm not looking to earn from signature campaigns, I have a very large number of followers online who are interested in crypto so I can earn a lot from that