I think newcomers should participate in the bounty, so this is a huge experience and knowledge.
A great idea, I feel this is the best way for them to get used to the cryptocurrency market. Once they have joined the bounty, surely they will find a lot of information about it and get the job done, I think that with only 1 month of joining the bounty, they can know a lot of information about it.
I guess a bounty can work but only for people who need work mostly. Not everyone has big social media account or bitcointalk account to join bounties. They also might not want to. But for earning them and learning to trade with them ita good and wont coat them anything. Just make sure you let them join a decent project or them might think all crypto is scams.