Hello B-HXG
As I wrote in my initial post in the other forum, until I discovered FlyerTalk a few months ago I was not even aware of the concept of Tier Matching for Airlines and Hotels.
I really was not sure what the outcome would be, but pursued the idea by writing to CX to enquire about matching my SQ Gold. I included detailed information about my travel record for the past 6 years (average of 60 segments and 150k miles per year) and the initial automated response was Silver. I don't think it could be described as "making" CX do anything, but in further correspondence they offered to grant Gold status subject to confirmation of upcoming bookings on CX which I did provide.
To answer your question, I do not know if SQ does tier matching but it can't hurt to ask them if that is what you are interested in.