I have updated post #1 which has reduced the need to make a post in here.
You'll now have to join the EAB social group "
EAB on Slack" in order to obtain the invite link. The group cannot be joined by guests so the invite link is now secure and is now only accessible to EAB members.
I thought this would be a sensible method for our security.
EDIT: /DH is very lonely in this group