I wish I could provide more insight, but I have had a whopping one article chosen for CFFD, and the only reason it continues to get reads and meaningful engagement a month after distribution is I am not bashful about linking to it in comments, https://medium.com/illumination/can-we-please-all-find-the-space-within-which-to-breathe-the-same-air-and-agree-not-to-agree-6b6b2c8077ec, and I create short forms around it from time to time. I just got myself added to Politically Speaking and have a short form waiting in their Q. As it's a very relevant political article, and one that seeks to unify even people with vastly different ideas, I'm curious to see if that gives it a bump.