Trying to catch me on a technicality, eh, réd? Note that I used the lowercase “q” as opposed to the titular “Q”, by which means I have applied the word in a broader, less literal sense (cf.
www.m-w.com: 2 a : a female monarch b : a female chieftain; 3 a : a woman eminent in rank, power, or attractions).
Technicalities aside, though, who is Galadriel kidding? Guardian-schmardian. Everyone knows that before coming to Middle-earth, “…she yearned to see the wide unguarded lands and to rule there a realm at her own will.” Declining to formally declare herself a queen was just another bit of Elvish nonsense. Everyone knew who was boss of the old Golden Wood. There’s that quote that Voronwe mentioned, and also note that at one point Gimli refers to her as “Queen Galadriel” and Legolas doesn’t correct him…