Comment by YuriNiyazov

I work for an academic publisher, so I’m deeply biased, but I’ll say this: criticism usually consists of something like “it doesn’t cost $6300 to publish one article”, and that’s true, but, it does cost that much to receive 15 articles for submission, peer review all of them, reject 14 and then publish 1. Remember: publishers don’t charge for a rejected submission, but incurs costs with all of them.