bored about achievement announcements? - the solution!

[Rub]

1. rightclick your chat window
2. settings
3. find the option "Guild Announce" and uncheck it
4. ???
5. Profit

if your chat configurations do not save, make sure your wow folder and subfolders aren't read-only.

/edit: that means rightclick the folder, uncheck "read-only" and press "apply", then "ok" or just "ok"