Just my take on the whole thing: if I were submitting my poems for money, then I wouldn't post them on the open forums here (critique is mostly safe, because it's behind a password wall and can't easily be searched.) Which is sad, because our give-and-take poetry threads are amazing inspiration!
But I'm not submitting poems for money, not directly, and not to traditional poetry markets. By the time I'm done turning my poetry into book art sculptures, my buyers couldn't care less whether they were previously published or not.
Think about what your end goal is, for your poetry. Post accordingly.
And yes, Kenny, not to beat the dead horse or anything: if something is searchable online, then it is considered 'published'. End of story. You can argue intent and semantics, but the poetry and academic publishers, the Big Five imprints, and most small to independent publishers operate on that principle. So authors have to, as well, if they want to play in those sandboxes.