Good question! The postgres solution was unexcusable, it was always used side-by-side with dbus. The other was around before any affordable[1] enterprise messa

Good question! The postgres solution was unexcusable, it was always used side-by-side with dbus. The other was around before any affordable[1] enterprise message busses existed, however as that changed the buggy solutions was still touted as "amazing new tech that keeps us ahead ofthe competion. No we can't switch to something else". [1] Affordable being defined as: this particular company could pay for it without going out of business.