If we can tackle campaign managers, we have solved half of our problem so my suggestion goes like this. Before a user gets a privilege to manage a campaign he/she must have a past record of been meritef for quality posting  e.g a Legendary member applying to be a campaign manager must have earned 50% of the current legendary merit requirement to be eligible to manage a campaign.i.e user must have earned  1500merit for equality posting. This will make then take their job seriously as they can lose the privilege.

Secondly, there should be selected altcoin used for altcoin  bounty campaign payment. I am against the idea of banning all altcoin bounty leaving only paid bitcoin signature. The forum has grow more than just bitcoin. I believe that's why we have grin as a payment option now.  So this is my suggestion, every altcoin bounty should pay their participates in the token of the blockchain their project are developed on.
Example, If your project is based on ETH or EOS blockchain and you want to run a bounty campaign participates will be paid in ETH or EOS  and not your worthless token. I believe this will also have an impact as they got something to lose if shitposters are been paid.