I'm no attorney, but that FAQ has parts that are simply not true. *any* discussion of prices by people in the same industry does not constitute price fixing. It takes an agreement on pricing between competitors to constitute price fixing. And that page is the page of a guild, which is an association, which is different from just any mailing list when it comes to restraint of trade issues. Most associations do have policies about discussing pricing. Not because doing so is illegal, but just to avoid letting it ever get that far or having to constantly police it.
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