Usage of "self-absorbed" to describe metaphors [closed]

I recently posted a few metaphors I came up with and someone on a stack exchange website said it was overly descriptive and "self-absorbed," and another person said it was "self-indulgent."

My question is how can metaphors be self-absorbed or self-indulgent? Wouldn't the self refer to the metaphors? They were saying the metaphors themselves were overly descriptive and etc.

I can see how people can use words the way they want to, but how do the usage of those words in that context even make sense?

If I said I wrote self-indulgent metaphors, that would make sense, but saying the metaphors themselves were self-indulgent makes me perplexed? Is that correct usage?

Also, just curious, but what would the difference be between:

I wrote self-indulgent metaphors.

The metaphors I wrote were self-indulgent.

I self-indulgently wrote metaphors.

Metonymy is common in English, with context critical to understanding.

Just as the previous sentence used English to refer to the users of the language, your correspondents used metaphor to reference the person introducing the metaphor - namely, you.

Metaphors are not beings, capable of contemplation. So your correspondents were really saying that you were self-absorbed or self-indulgent by (you) introducing the metaphor.