First of all, I suggest you to move this topic to "Services Discussion" (you can find "move topic" button on the bottom left of your screen)
Some apply to campaign of the same manager in less than a week of getting accepted and they want to move again, the same payment and number of posts.
Campaign can have more relaxed rules, like posts in local boards count or they don't have to write certain amount of posts in specific board (gambling campaigns usually have this rule).
What makes members move everytime? I need your contribution on this to make me understand it better.
Everyone has its own reasons why they change campaigns, with increase in pay rate being the most common and popular one, followed by how relaxed signature campaign rules are as more relaxed rules usually equals to more natual posting.