I don't see why anyone would be against this idea... It would be as simple as turning it off in the chat menu options if you don't want to see global chat.Or, just by having a separate tab for global chat all together.

The terrible communication system in this game needs to be addressed. As it is right now, i find it difficult to communicate with other players, the chat interface is clunky and annoying. If i'm doing anything in game (crafting/fighting/whatever) i find it difficult to send or reply to tells. And this being a MMORPG, communication between players should be a top priority.