Since we are hunting a scam post and trying to clean this forum, I would like to suggest that Newbie will not allow to post any promotional or a bounty thread in this forum. If a project is a legit one then they should cooperate with some of the Bounty Manager here or some higher rank to post it. It will make sure that the project will be a legit one and not a scam post only. I know this is not good idea (only suggestion) but it will help the forum to be clean and no posting scam project already.
Not justifying but just a suggestion:
Anybody should be allowed to post bounties and promotions but the projects that they are promoting should be verified by a number of set rules. And obviously, as you just mentioned, if the project is legit only then it should be allowed for posting.
This might be a good implementation to avoid scammers from doing any activity on this forum.