The signature you will not be able to run , but the bounty of social networking that I think can run , just think whether you need it for 10-15$ to do all day posts?
With so many scam bounties right now, i don't think he can earn $10 -$15 daily from social media bounty. There are lot of people who joined on other bigger paid bounty (signature & translation bounty) but they even got paid less than that (or get scammed).
The restrictions is mainly for signature campaign, most do not accept Newbie for signature campaign,
Newbie can't wear signature anymore, so it's not about campaign don't accept newbie