"Fools mock but they shall mourn" I'm cool with this. Let Trump make fun of Dr. Paul. No one respects Trump. He is a clown and a joke and anyone he supports will have that image rub off on hiom. It makes the Doctor look more real and serious not engaging with a fool like Trump.
trump would not have treated ron fairly during the debate because "he can't win" and because he hasn't personally met with trump and kissed his ring like other candidates.
If he attends, many will see him as just another Klown candidate. That he is telling Donald to piss off is a good thing. There will be the price of exposure, but I am not sure I buy the old adage about "no such thing as bad publicity".