Create a new board isn't going to solve spam problem if there is no strict guidelines or rules for bounty managers. Still you could run spam free campaign if thread is self moderate. If implement guidelines or rules than current ( Altcoins Bounties ) board is enough to run spam free campaign. I have created a thread about possible guidelines, and I think at least should be implement some of them. Really should not give freedom to bounty managers. If no rules for them than spam will never end.