Yes, people are doing 4 wire 485 out there and you can't stop them.
See your friends at:
http://www.bb-elec.com/tech_arti...sp#systems

They do not, the link clearly states that 422 is two pair and 485 is 1 pair

"RS-422 systems require a dedicated pair of wires for each signal, a transmit pair, a receive pair .......... Internally configured RS-485 devices simply provide A and B connections (sometimes labeled “-“ and “+”)."

Why are you defending someones right to call the moon the sun?

Erik