Not OP, but I am interested in this community and I am also getting an error when I try to sign up:
Access Denied
foundersnetwork.com is using a security service for protection against online attacks. An action has triggered the service and blocked your request. Please try again in a few minutes. If the issue persist, please contact the site owner for further assistance.
I have a personal website but am not comfortable sharing here - is there a way to message you?