Privacy stuff (not full but just to enable /contact for now)

So, this should be mostly working, but we still need to set the visibility for replies to match the visibility of parent comments for now
We used to show "reply" for logged-out users, so that was the intention, keeping that. What's the better approach? Obviously, I want to go with the correct way to do this.

Is the better approach to mark that logged-out users qualify as "can_reply" ? That's a bit odd since it isn't literally true.