Some thoughts on bad poems and fake poems:
Fake poems are contrived, pretending to be the real thing.
But a bad poem is just what it is, naive, a failed attempt by someone who is trying to write a poem, someone who is sincere.
A fake poem is a pretense that even deceives the author of the fake poem. They think they've created something, they've pulled the wool over our eyes and their own eyes. But it isn't a real poem they've written, it is a fake poem.
A bad poem lacks depth; a fake poem has depth but it's a lie, it's trying to fool the reader into believing it has depth. A fake poem will always be fake, contrived, pretentious. A bad poem is an effort that didn't work; a fake poem is a lie.
We all know a bad poem when we read it, but people don't want to admit that the Emperor has no clothes, they'll sit and admire the fake poem.