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Please do not add genAI images to punch up your writing. You might think that it adds a nice little bit of visual pizazz to your content-marketing piece, but what you're actually doing is *making it look like content marketing* rather than a useful resource. To the extent that content marketing is an effective tactic, it is because you build trust with the customer by providing them valuable information. A genAI turd plopped on top of your writing is a signal that it will be worthless slop.
Or it could be the fact that “good looking” literally has no objective measure.
I think something innocuous or inoffensive enough to most people qualify as "good looking". I mean, that's how marketing works.