Is there any way to turn this off? It spams guild chat, does nothing, and is of no value because it's just low achievements that people get in 5 minutes like Vanity pet, Shave and a haircut, etc.
If you go into your chat box settings, under the "Other" category, there is an "Achievement Announce" box that you can uncheck. Your achievements will just feel lonely not being shared with others. :)