This is true, most of the server is from the EU, it can drop as low as 2k people when it is around 11PM Pacific Standard Time (West Coast United States).
I would think that as well, if it weren't the only word shortened in a lot of cases. I've often found a person will spell out every other word in their sentences fully, but not queue, which gives the impression they just don't know how to spell it as it is an uncommon word and in English "que" and "queue" would sound the same if read out loud.
It is likely just a personal pet peeve of mine, like when people use "y" to mean "yes", when "y" can also mean "why". Que is also Spanish for "who", "than", and "that", furthering my dislike of the usage in English.
As an NA player I would like this as well. That server also had a large Chinese population, so it should even out the population more throughout the day.

