I assume you meant "boards" not "boars"

Apparently it will be a discussion board where only the hosts and hostesses will have access to, just like the moderators only board (for which the link is still up, even though there are no more moderators.) It will probably be a place where the hosts and hostesses can communicate with each other and with admin. I guess TER started the board before actually announcing any hosts or hostesses.  

On the other hand, a boar is a male pig I have no idea what a host or hostess does with a boar. Nor do I want to know

It is a board for hosts and hostesses to discuss things, but, as a host myself, I have not yet been given access to it.

Swim

You just don't know them and they don't post on these boards.  They are TER employees behind the scenes.  It would make sense that they could still need a section to themselves.