I used to be bounded by the usual stereotyping of different stars, but nowadays I don’t really care? Like, I’m not going to look down on anyone regardless of their star colour, because I’ve met a fair share of people who are dark blue or red star and know how to play the game well, and I’ve met a fair amount of toxic or nice people from each star rank.
I guess one thing that stars still define to me is a rough estimate of how long a person has been playing. Even then it is still not accurate as some people are alts, play the same classes or outright refuse to play certain classes. Despite knowing the inaccuracy, I’m still bound to think that, and I’ll still have an internal standard that orange stars and above should know most of the game’s content and its workings because they’ve probably “played long enough”