This could be much more like a crew room.....plenty of room for nostalgia as well, just on appropriate threads....
If I was sat in my current T-bar, 2m away from a colleague, and I asked him a question relevant to current activity, it would be rude of someone else to but in from a different 2m with a completely irrelevant answer no? I'd suggest if that person kept doing that, they'd find themselves self isolating in their own office.