HOing is definately part of the game but, HO used as a tactic IS kinda silly. 50/50 chance of getting wasted yourself. Honestly though, if I do find myself getting HOed, I will fire. In the same vein, if I turn and find myself looking at a HO shot (especially in a furball when my SA is in the crapper), you better believe I am gonna put rounds downrange (better than no shot). I do not intentionally HO because it is an iffy tactic, and I'd rather make someone chase me to kill me.
The aircraft/loadouts mentioned by the trainers are the best for HOing, and at times it is also necessary to fight fire with fire. But if you are planning on HOing all the time and announcing (read trolling) about it, be prepared to become a target since we know your name. Also be prepared to die a lot.