<b>Native lookalikes launder your worst converters into "scale"</b>

<b>Native lookalikes launder your worst converters into "scale"</b>

<b>Myth:</b> Seed a lookalike from your converters and native finds more people like them.

Wrong. The seed is contaminated. If a chunk of your "conversions" came from invalid or accidental traffic — and on native, it did — the lookalike model learns to find more of that. You scaled the fraud signature, not the customer.

Garbage-seed-in, garbage-audience-out compounds: each optimization cycle leans harder on the cheapest, most fraudulent pockets because they hit the seed's pattern fastest.

Clean the seed before you scale it. Strip sub-second conversions and zero-scroll sessions, rebuild the lookalike, watch the addressable audience shrink — and the real CPA finally tell the truth. The model was loyal. To the wrong teacher.