It's a rumour people working with the traditional academic publishers have been spreading, but I haven't been able to find any proof. All I got when asking for

It's a rumour people working with the traditional academic publishers have been spreading, but I haven't been able to find any proof. All I got when asking for it was "the evidence exists, but there is no gain in publicizing it": https://scholarlykitchen.sspnet.org/2017/12/21/wakeup-call-looking-back-2017-factors-affecting-2018/#comment-72764 https://scholarlykitchen.sspnet.org/2017/12/21/wakeup-call-l...