[Some bot sites strive to offer a level playing field. At MortgageQuotes.com, for example, staffers ensure that none of the 1,300 lenders who participate in the site are engaging in bait-and-switch, offering a lowball rate that they won't be able to give in reality.] We have removed 44 lenders for that, ... We find out about it from consumers, other lenders or our own software that checks whether their rates are within a reasonable guideline of profitability.