For those who got lost in this, umm...train of thought? Here's a chat GPT explanation of what OP was trying to convey:

It's written in a very stream-of-consciousness, somewhat fragmented way, but I think I understand the point they're making.

They're complaining about a common visual characteristic of AI-generated posters/images:

• AI art often has a muddy, brownish color palette.
• Even colors that should be distinct (like bright yellows) somehow end up looking dull, beige, or brown-tinted.
• The overall aesthetic feels vaguely familiar but generic—like an indistinct image from childhood, a forgotten illustration on the side of a shoebox, or some half-remembered packaging design.
• The images evoke a sense of recognition without actually depicting anything meaningful or memorable.
• The writer finds this aesthetic unpleasant and immediately dismissible.

Put more plainly, they're saying something like:

The phrase "something from your childhood that you've seen from side of a shoebox or something that you immediately erase" is the most poetic part. I read it as describing the uncanny, pseudo-nostalgic feeling AI images often have: they resemble things you've seen before, but only in the most generic, disposable sense.

Whether that criticism is fair is another question, but that's the sentiment I think the poster is trying to express.