Because you got cocky, greedy and reckless.
Now then, let me explain some very basic things to you.
-You weren't using it out of the game, since the script wouldn't register that
-You weren't using it while chatting, since the script doesn't recognize that
-The button wasn't assigned to any VOIP functions
Now then, make your choice. Refer to my first post here, and either come clean or face the consequences. In case the consequences aren't familiar to you,
The clan has zero tolerance for hacks. Any member caught using/distributing and creating hacks for any purpose will be kicked out of the clan, and his actions will be reported to every major server owner.