The killing began with pretentiousness. Poets began writing ever longer and more turgid works. The references to gods became too many and too obscure for the ordinary working class citizen to know or understand. And the structures! Complicated, twisting; difficult to read; harder still to speak.
At least poetry was still read (and enjoyed) by the academics and those of a literary disposition. Now, even writers pay them little attention; and poetry seems mainly to belong to a few niche circles.
This new fall came from the modern era. Poetry is no longer a an art form worth practising: it is now merely a way to express musings. Little snippets of words that just happened to be passing through your mind are now considered serious prose.