Is posting sexy pictures for attention a form of cheating, another way of flirting, or something else entirely?

For comments and likes. Is it a form of cheating, or another way of flirting? Or something else entirely?
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Let's say that the person posting these pictures was interacting with the people responding, in a flirtatious way? Is that wrong?
Is posting sexy pictures for attention a form of cheating, another way of flirting, or something else entirely?
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