Why most advertisers find out too late
The accounts in the table above were running ads or building audiences yesterday. Today they got suspended, removed, or cut. The reason is almost never that they violated an obvious rule — it's that Meta's interpretation of an existing rule shifted, and they had no way to see it coming. Meta updates Community Standards and Ad Standards on a near-weekly basis. Most updates are quiet edits to a single sentence inside a policy article. Those quiet edits are exactly what produce the enforcement spikes you see in this matrix 3–10 days later.