Yeah...

a) If I wanted to sabotage it (even for profit) I wouldn't admit it in public.
b) I wouldn't accept payment in the currency I'm putting at risk.
c) Anyone who has mined bipcoin has some interest in the health of the coin, even if that means the difficulty goes up, because an increase in popularity means an increased probability that your existing coin is worth something.
d) You know where I live.   ;-)