Myth: Optimization algorithms will weed out bad native placements for you.

Myth: Optimization algorithms will weed out bad native placements for you.
Wrong. The algorithm optimizes for the network's revenue, which bad placements generate. Build your own blacklist in one hour:
— Export all placement-level data, last 14 days
— Filter to placements with 200+ clicks and zero conversions — instant exclude
— Filter to placements where CPA is 3x your target — exclude
— Add any domain matching a known MFA list
— Add placements with sub-2-second average session
— Upload as a hard block, not a bid adjustment
— Re-run weekly; new junk domains spawn constantly
Supposedly 'let it learn'. It learned to spend your budget on a chumbox. Who told you the optimizer was on your side?