Unfortunately, I don't think you understood what the OP is saying and what I am saying.

Firstly, please separate *G from CO Gold. The OP is not referring to *G, they are referring to Continental's status.

CO Golds AND CO Plats are considered *G in the Star Alliance system.

In United's upgrade priority system, 1P's are of course put ahead of STAR GOLDs. When the agent referred to Gold, she was referring to a Continental Gold. Why would they be ahead of a CO Plat on the DM?

Again---

BPs pre-last week said PLATINUM/*G for my UA flights, and they now say GOLD/*G-with no explanation from CO or UA as to why. Also going very far down upgrade lists.

Continental's response is: We know you're a Platinum and our records show it. Unfortunately we have no way of seeing what United's records say or why they might be wrong.

United's response is: Ask Continental-we only have what we have. Sorry.

The boarding pass itself is stating that I am a CO Gold when I am really a CO Plat. It stated Plat all throughout the year. So no, UA is screwing it up. Every boarding pass I've had this year has rightfully said Plat/*Gold. Now all of a sudden its Gold/*gold.