Yeah, pretty much what it is...........comes down to a couple of folks ONLY being in the discussion which keeps things from getting out of hand........like on the BDF sometimes......
Don't know if that is what it is here or not.
When I had a Site..........I had a Forum Page titled: One on One
Two members could start a Thread on any Subject and have a reasonable and respectful discussion without fear of others jumping in or trying to derail the Thread. If they wanted to add others, they could Invite them to join the discussion. Everyone could read the comments as the discussion progressed, but they could not join in.
I really liked that option.