The great enemy of clear language is insincerity. When there is a gap between one's real and one's declared aims one turns as it were instinctively to long words and exhausted idioms like a cuttlefish squirting out ink.
If you go into a bar in most places in America and even say the word poetry you'll probably get beaten up. But poetry is a really strong beautiful form to me and a lot of innovation in language comes from poetry.
