We always got POLICY_FINDING error when we was trying to create ads with "!!" in the past. But now, we cannot trigger this error anymore. For example, if I want to create this ad without setting PolicyValidationParameter.IgnorablePolicyTopics (via Google API), I would get PolicyFinding error CAPITALIZATION/SYMBOLS/UNACCEPTABLE_SPACING before, but now it could be created successfully (ResourceName "customers/6360593950/adGroupAds/153394587007~660332761664"):