Hello all!
Just a quick find I wanted to post on MMOwned. I found this addon that automatically fakes achievements instantly!
Link
How it works:
Just install the addon, and then when you link an achievement from the blizzard interface, it will fake it for you!
In addition, if you type in "/ua" and then navigate to the Replacements tab, you will see a set of shortcuts then when typed, will link the achievement.
Well, as you can see, if I were to type "%epic" (with a space after) I will get a fake achievement for [Epic].
Hope this helped!
Amirite, signing off.