Thats not what this suggestion is about. In guilds we are using "q" and "g" in guild chat to show we are queueing / found a game. If someone types q, no other guildmember will queue up for PvP until that person found a game and types "g".
To get rid of this "timewaste" it would be nice if it was impossible to get matched with a guildmate in the first place. That way everyone of a guild can just queue at the same time.
Now I dont know how hard that would be to implement but thats another story.
+1