Unfortunately “better ad sourcing methods” require a lot of human capital to support (direct-sold ads, constant monitoring of inventory, being able to afford hi

Unfortunately “better ad sourcing methods” require a lot of human capital to support (direct-sold ads, constant monitoring of inventory, being able to afford higher bid floors, etc.) or ultimately access to better advertisers by having a large amount of traffic. All of these are features of larger publishers, unfortunately, which means that smaller publishers suffer more malvertising. So you’re basically just supporting large publishers. Which is definitely better than supporting none, so I still commend you :)