Quote:
And still nobody has told me how to whisper someone with my bot?

If the goal is to send a Whisper over the Twitch Messaging Interface(TMI), then just send a normal chat message using the 'msg' command in mIRC.
Code:
msg #darthclide /w darthclide I whisper sweet nothings in your ear... er uh, beep boop, I'm a robot?