Only sure way to make money on the board is to join a signature campaign that has it's funds in escrow.
I have seen many signature campaigns go belly up and not payout it's members in the end.
Just a fore warning to you with who you sign up with.
Can newbies join any campaign ?
Yes newbies can join campaign there are signature campaigns that allowing to join newbies to their signature campaign. It is 777coin and bitvest but the owner that two sites is just only one. But I think there is an ongoing problem to their signature campaign or it is just normal that their payments is always delay.