I think it's great to show your support to a movement and go all out with KahanistIsrael or Kahanechaiyoohoo, or Chaimsthebest, JTFrules, etc etc etcetc...
However, another way to go about it is to give yourself a regular name, Dr. Dan, or PeaceNow26 or LovestoEatPizza etc etc like just a regular name and show yoru support for this seemingly wacky movement, yet so righteous movement. that way, some people will say, "hey this regular person likes something about JTF, why dont' I check it out?"