How to turn off potential registrants: not accepting e-mail addresses from aol.com or protonmail.com. I was skeptical anyway, not sure I wanted to register, so the decision was made for me. However, it also means that I will soft-boycott Human Made (i.e., I wasn’t using their products anyway, may not have, but now will deliberately choose another option.) Yes, I am an amateur; yes, I maintain or comaintain 4 WordPress sites. No, I will never be a big-budget customer.