Who decides which poets editors may publish?

I am the founding editor of Shit Creek Review, The Chimaera and The Flea, three poetry venues which between them have published nearly one thousand high-quality, mostly formalist poems as well as short stories, reviews, essays and poetry features. I have had no option but to resign from the Eratosphere poetry forum because of the activities there of a particular group of members who have consistently and forcefully attempted to dictate who I may or may not publish in my poetry magazines. More details on the Caratacus blog.