A ho is a perfectly legitimate tactic. It is allowed in game, it was historically done, measures can be done to avoid it. Certain situations would call for this to be a superior tactic.
If you are one of the ones complaining, you are the problem. You do not understand the game, you do not understand aircraft armor and armament, and you clearly know nothing about tactics, or maneuvering. If you are thinking that a fight in the MA is some kind of chivalrous duel where you toast your enemy afterwards you are mistaken. There are other ways to do that if that is how you want to play.
Of course it seems from flying in the MA all the "non ho'ers" make an exception when I am flying a 262. Because EVERYONE will HO if given half an opportunity. So it is apparently wrong to do, except when there is an exception to the rule. Wait...what?
So it must be the 262 is so awesome it is totally ok to kill one with a HO...even if you think it is wrong. Makes sense, a 262 is superior to any aircraft.
But it is wrong (as an example) for a slow heavy and poorly maneuvering 190A8 to HO a fast, nimble Spit 16....
That does not make sense because a Spit 16 is superior to a 190A8.
Here is a new word to add to your vocabulary for alot of you out there
http://www.merriam-webster.com/dictionary/hypocrite