There may be a grey area between &quot;manipulating&quot; and &quot;changing view&quot;, but in the case of advertisement this this clearly on the &quot;manipulation&quot; side, almost by definition.<p>Ads are fully paid by the seller, and exist by definition to serve solely the seller&#x27;s purpose. In addition, ads are expected to &quot;look and feel&quot; like they were in the customer&#x27;s interest, which makes it even more clear that this is all about manipulation.