Is This Guy Writing About Postmodern Poetry?

Because it's pretty much the same complaint that I have. Here, speaking of using common language, the language of the masses, so to speak:

Accordingly, such a language, arising out of repeated experience and regular feelings, is a more permanent, and a far more philosophical language, than that which is frequently substituted for it by Poets, who think that they are conferring honour upon themselves and their art, in proportion as they separate themselves from the sympathies of men, and indulge in arbitrary and capricious habits of expression, in order to furnish food for fickle tastes, and fickle appetites, of their own creation.

But who wrote it? That is the question, and the rub. And the prize.

I have wished to keep the Reader in the company of flesh and blood, persuaded that by so doing I shall interest him.