A true Head On takes two players to accomplish. Most of the children forget that.
The only argument someone may have is when they have the absolute angle on an enemy plane with guns trained and range is closing and the target plane chooses to turn head on instead of performing a defensive maneuver. But even then, the attacker has the option of pulling up and re-setting his attack and not allowing the Head On to happen. So it truly is a double edge sword.
The absolute worst low-life "ACM" in Aces High (yes, the HO is an actual ACM) is the stick-stirrer. Nothing is more comical to watch than some supposed "ace" to jerk his stick around like he just a seizure and think he is actually being a stud pilot (you know who you are). If HTC would do anything to AH, tightening up the "Do no move your controls so quickly* parameters would be near the top of my wish list. The first time that stick is jammed in 4 opposite directions (up, down, L, R) within a 2 second period it would lock up and the message "Knock it off, idiot" would pop up instead.