I firmly believe the mere act of dodging the HO then killing that pilot, afterwards (if he isn't in a faster plane and runs away), will convince any player that relies heavily on that tactic, yet is interested in staying in the game, to learn how to do more than just that. It doesn't matter who asks a trainer about how to HO, when to HO or even if to HO or if the trainer provides the answers. They'll ask better questions and get better advice as time goes by.
I also believe that many a seasoned veteran will take the HO shot from time to time (as evidenced in anecdotes in this very thread). I prefer the dodge (in spite of Titanic's on the deck Me-110 ho-down exhibition that night
).
As to the side issue of channel 200 'call outs', most of us know that they don't serve the purpose of 'making the game better' .... but we also know its human nature in practically all online games of combat and/or competition for players to vent in moments of weakness. I don't expect it to ever end but its not an example of virtue.
I've had more than a dozen HO passes made on me in the last 24 hours in the MA. I received a pilot wound from one and was forced to ditch. I don't generally take to ch 200 (I even detune it) because I really can't play typer-High and fly (which is why I seldom .... ok,never .... return salutes, as well). If my opponent can't feel me smiling then I suppose that's not a feature of the game.