There are many publications that accept already published stories. In fact that's the only way I publish. I am also editor and publication owner. While the comments about publication date potentially affecting visibility is true, it never affected my articles. What's meant to go viral will go viral regardless. That's a sad excuse from certain publications to appear more prestigious. Some make you wait days or weeks to approve or reject a draft as if they were the bloody New York Times or something. They're not. I love publications, I wrote for many, but some are just too full of themselves for no good reason.