Sad part of this bounty activities you work for the team and wait till they give your rewards but then after the value isn't worth for the time that you work, and some of them ending up to be nothing or just a scamming project that resulted to nothing at all.
At present we cannot expect too much from the bounty that are running, because many bounty have been completed but not paying participants at all, and of course this is very detrimental to the bounty participants

That's the risk when you joined in any of altcoin campaign, especially with ICO or IEO which means their token didn't even listed on market yet. This is like gambling, if you are lucky you could earn a lot, but if you aren't, you will ended scammed