Just imagine it. Your looking for someone to do Trials, or the Raid, so you use an emote where your guardian just pulls out a sign that says LFG on it until you tell them to stop.
Now that's an emote I'd waste my money on.
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I wouldn't buy it unless it looked like a filthy cardboard sign with the letters written in black marker and your guardian started twitching like an addict whenever they held it up...THEN, I would buy it.