They need speakers for world chat, its bad enough with people being stupid or silly with it. Mostly we need a way to "hide" world chat when we want to. You can close your realm chat by selecting guild chat. This becomes important mostly during Guild Wars. You need an open chat for orders and directions to members, not to be reading some persons inane babble or smacktalk. There are already too many banners. Its just overkill and loses its importance to read them all, like who cares if JohnDoe craft a sword!!! Or someone makes a guild investment -honestly, a lot of it is unnecessary.