No, never. But when i tried out silkroad a couple of years ago i seriously thought about botting but i realized that if i needed to bot to get somewhere in a game, that game wasnt worth my time.
Edit: I don't know if it can be considered hacking since i didn't use a third party program. But back when left 4 dead first came out, there was a way to spawn unlimited zombie bosses in versus.
That one game i was on a server with all talk on, and 2 guys on the other team kept screaming racist shit in the mic and insulting everybody including their team mates. Their high pitched 11 years old voices got to me at one point.
I started spawning zombies until they started qq'ing and finally rage quitted.