You asked what emotion do poems generate (I assume you mean LLMs that generate poems and not poems themselves) and my answer is "wonder: A feeling of surprise,

You asked what emotion do poems generate (I assume you mean LLMs that generate poems and not poems themselves) and my answer is "wonder: A feeling of surprise, mingled with admiration, caused by something beautiful, unexpected, unfamiliar, or inexplicable." It's quite common feeling that arises when people interact with these things. That skeptical-of-AI folks have decided to pathologize the behavior doesn't make it pathological.