How so? These bot systems work on volume – there's no regard for how much reviewer time they gobble up. The idea is to make producing reports basically free, so

How so? These bot systems work on volume – there's no regard for how much reviewer time they gobble up. The idea is to make producing reports basically free, so getting 1 in 1000 positives is still a success if you have no regard for externalities. If they have to pay for reviewer time for each of 1000 reports, then the scheme stops being viable.