We gank those who gank us. We spam bcs when people spam them against us. Treat us as you wish to be treated back because a lot of this "K'Hara ganked us waaa" stuff often happens when we try to shoot other people early before the mass of people log to shoot us.
That being said I will tell my guys to not go out of their way to gank people unless it's needed.
Also the guys I assume you are on about haven't reached a high enough "rank" to use a BS/Dread with a K'Hara tag.