tip 1; Do not allow knights to linger on the board. Letting a knight sit in your sphere of influence is a no-no. Trade knights for bishops no problemo especially if one is sitting all around your world. Tip 2: Dont allow pins to your knights. early in the game play h6 or a6 as black to avoid a pin of your knights.
Thats not true, if it is an open game you want bishops over knights. It depends on how the game is going at that point in time.
Bad advice. It's often a waste of time to play h6/a6 or h3/a3 just to prevent a Bishop from pinning your Knight.