The actual problem is, I do not even think bounties are useful for project. There are thousands of projects on social media shared by those people. So how can one be seen better than other? Bounties should turn to 'Social mining' so people should compete with each other to create useful content. I really like the social mining concept to be honest.
LOL, swallow your own word. You are even wearing a bounty signature and yet saying that bounties are not useful to project. Bounties such as signature campaign and social media campaigns help spread and promote a project.