It's more about taking freedom of choice away. When I join a club in real life, regardless of what it is, unless that club deems it a requirement I show club colors, I can choose to or not to show who I'm representing.. To me a guild is akin to the same thing. I will always choose to show my guild tags no matter what, however I don't think it should be a requirement. It never was, there was never a need to change that. We also require our guild members to wear their tags, and not be douchbags, and deal with it if they do not abide. The system wasn't needed to police this, it just removes another element of choice. But at the very least, thieves guild, and incognito, definitely should remove guild tags..