Hello Yiannis,
I am really sorry for the delay of this reply as it is a weekend for us here.
Thanks for heading up on this, we will see if we can implement this in the future.
To temporary fix this, you can create 2 hidden menu item for this Easydiscuss Profile setting layout and Users layout menu type, and set to Access - Registered user, so which mean that when guest user click on member profile, they do not have permission to access.