If they mark them and follow all regs there would not be a problem but that won't happen. There are some that will set them legal or not. Outlawing them is not the answer but enforce laws already on the books. The big Flatheads would be under utilized if only fishing allowed was poles. I can see both sides of this problem. I love to use set lines but good hooks and lines are too expensive to leave out. They are not only a hazard to wildlife when left out but if water drops like it does on Nimrod it can be dangerous for boaters!