[Leader]

I sweat people all the time. I don't tell them how to play during the hand though. Not because I consider it unethical, but because it's ineffective at teaching people how to play. If I'm going to tell them how to play, they should just watch me play.

In general, a much more effective way to teach people to play over IM would involve:

-watching them play a hand
-Asking them why they make a certain play
-Telling them how you would play the hand and why
-Discussing the difference between what they did and why and what you would have done and why.