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.
Don't just focused with bounties, as I've said there's so much opportunities that awaits to all of us, yes including me. I'm not going with bounties and if you don't want to waste your efforts you better start looking for something remarkable and accepted through your skills. You may be a newbie in rank but I know there are people out there that has some exceptional skills to showcase not just for bounties but for different job offers.