Which of the following contributes to creating blacklists in advertising?

The reason that unusually high click rates contribute to creating blacklists in advertising relates closely to the concept of fraud or unsustainable traffic patterns. When an ad experiences abnormally high click rates, it raises red flags for advertisers and platforms. Such click activity may indicate that the traffic is not coming from genuine users, suggesting the possibility of click fraud, where individuals or bots artificially inflate click counts to generate revenue.

In the context of programmatic advertising, maintaining high-quality ad placements is crucial. Therefore, when unusually high click rates are detected, it often leads advertisers to blacklist certain sources or environments to protect their budgets and affirm the integrity of their advertising campaigns.

The other options do not directly correlate with the typical criteria used to create blacklists. Low audience interaction and ad view impressions may not necessarily signify fraudulent activity, while brand loyalty programs focus more on consumer engagement and retention rather than factors that would lead to blacklisting.