bTargetIsGolden details please

[Byrin]

Well I am in the process of revamping my offensive target window and I'm having trouble figuring out what this represents. I see it in game when I harvest nodes and skin, but it show up seemingly random. I have asked in game many times and get a wide range of answers that all seem to be guesses and bad ones at that (verified that most of them are not factual by trial and error). Can someone out there please clarify what this variable represents for various targets, and what targets it might be applied to other than random harvest nodes?

Sorry if this was covered somewhere else (no way to search the fourms here).