Eh it might not take significant money out of the economy but it does delete gold that is used there which does combat inflation...
It might not be a big deal for a single player but added up with all players doing it multiple times i wonder how it would compete with things like the brutosaur?
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Quality of life change, you can change your appearance for free instead of having to choose between cosmetics (completely personal) and important things (profession mats, gear, mounts etc)
Not sure how thats blurring the meaning, your post is kind of pointless and unrelated to what i have said.
It really, really isn't. It's like calling an Innkeeper a gold-sink because they sell food... that's not a goldsink.
Maybe you should having a reminder of what goldsinks are in within modern WoW and the kind of amounts that are thought of when thinking of a goldsink (which is not the barbershop) - https://wowpedia.fandom.com/wiki/Gold_sink
This is great for genderfluid
Completely insignificant, that's why they're making it free. The only surprising part is this three page long thread talking about it.