I guess you are talking about bounties. If you are ending up with scam projects you should search yourself and ask on what you really want to do. It isnt the end for newbies, there are a lot of opportunities that awaits you. Just use your time appropriately and lessen it with scam projects. Thats the problem for most bounties now, looking for a legit one now is difficult.
Absolutely their have many opportunity in here if their doing well accept simple. Now every bounty problem scam and ico failed. So newbie need learning more about strong project. Then I hope their will be avoid scam and unless project.