They accept every submitted paper. Papers are not vetted like well respected conferences and journals. It has been spoofed by people submitting random generated papers. Definition from Wikipedia: "A vanity press or vanity publisher is a term, nearly always derogatory, describing a publishing house that publishes books at the author's expense...In contrast, mainstream publishers, whether major companies or small presses, derive their profit from sales of the book to persons other than the author." $ XXXX@XXXXX.COM :