That has been a waste of time during the last year and this year has not been that much better, there was a time in which participating in those campaigns was extremely profitable but since then many things have happened that has limited the effectiveness of participating in those campaigns, icos began to ask for KYC information, then the market crashed, no one wanted to invest in icos which made a lot of projects fail before they even began and scammers did not paid bounty hunters after they completed their job.
Yes actually, been very active last year in bounty campaign too, but none of them paid me right, or if they paid tokens just to say they are legit but they didn't enter exchange at all, so it is really useless. I can't imagine how bounty have come to that compare to the past few years wherein bounties have been profitable and have change the life of majority of bounty hunters.
It is not really difficult to understand why bounty campaigns went from being extremely profitable to give no profits at all, a basic reason is the supply and demand, when people realized that you could make a lot of money doing bounties we saw a tremendous increase in the amount of members in this forum, this increased the supply of bounty hunters and in return this diminished the profits that each one of them could get and eventually it made bounty hunting unprofitable.