Because we like an employee, bounty manager is our leader which help us and actually do big thing for us. So it will be good if we follow their rules and not violate it as long both us and bounty manager is get good thing for that.
But it should not be. We everyone here (at least the main reason) for learning. I may post sometimes while sometimes I may post 1. Chipmixer is the campaign which pays for 1 post too. If you post only one, you will still get the payment.