Dang! Looks like the King of the Decline is back to work again. My last combined submission of nearly 400 cards went through without a single decline (and just a couple given condition notes). I started getting excited about using COMC again in the future. I even congratulated them about it in this thread.
Just got notice that over 25% (56 cards) of one of the batches I have being currently processed are being declined. And of course the only "proof" is a random photo of a closeups of 8 mostly sharp corners (one card does appear damaged in pic, and one shows a microscopic ding). I was so hoping we were past this nonsense.