The usual defense by advertisers is that their clients do not want their businesses to be associated with adult material, so they insist that advertisers do not place ads on adult-content-friendly websites to reduce the risk of that association happening due to ads adjacent to adult content.
I'm curious as to how valid that is. Are many/most businesses (or many/most businesses that are highly valuable to advertisers) materially concerned enough about association-with-adult-content-via-ad-placement that they would switch advertisers over it? Or are advertisers manufacturing family-friendly ad placement as a competitive selling point that their customers never really asked for?
I'm also curious about the next level down the stack, as it were: if a significant subset of businesses who hire advertisers are concerned about adult-content-association-via-nearby-placement, why is that? Is it merely disgust/discomfort on the part of business leadership and prevailing culture? Or does data indicate that there's a material risk to enough businesses' bottom lines that it's fiscally prudent to avoid that association?
(Reasoning from first principles without data, so probably wrong) I'm skeptical about the validity of both claims. Adult content is really popular across many demographics whose behavior is otherwise quite different. Given that broad base of popularity, is it really that risky for a business to have its brand appear in an ad next to pornography compared to, say, appearing on a politically extreme news site, or next to algorithmically-prioritized ragebait content on social media? Unlike adult content, I feel like the associations formed by seeing a company mentioned next to something anger inducing are more likely to be negative than the associations formed by seeing it next to adult content that the viewer presumably sought out. In both cases, the chance of behaviorally-significant associations being formed at all seems quite low, so I'd imagine that effects here (if there are any) would only be visible in the very very large.