It's called "having fun," Richard. The most fun either of us ever had on FFL, in fact. We had a wonderful time throwing each other under the bus. And then an even better time laughing privately at the few gullible fools who thought we were serious.
Do you think it may have run mostly in one direction, though? The "parody" Robin posted about Judy was very revealing - why would Robin do that if they were such good friends. It's sort of like Robin throwing Judy under the bus. Go figure.