seeing as your on text event triggers before modes are set it is best to use a timer with an alias to check for mod status or any other type of channel status voice op etcetc
i tested this with my bot and it worked fine. also you have it set to On :open:?:: { which will not work since that only has to do with a pm opening. and not even if YOU are the one opening it only if someone pm's you/the bot. what is said in the pm is not caught by the on open event. it has to be the on text as i did below

On *:JOIN:#: { 
  .set %kickchan $chan 
  .set %kicknick $nick 
  .timerfbcheck 1 4 fbcheck 
} 
alias fbcheck { 
  if (%kicknick !isop %kickchan) { 
    msg %kicknick Hi, Welcome To $1. Do you have a 0,2Facebook0,1? Please answer Yes or No in the next 60 seconds or you will be kicked. (4Ops Please Disregard This Message.) 
    timerfbkick 1 60 kick %kickchan %kicknick 
  } 
} 
On *:text:*:?: { 
  if ($1 = yes) { msg %kicknick Thank You. Please Enjoy yourself. 
    timerfbkick off 
    msg %kickchan %kicknick has a 0,2Facebook0,1 = Yes! 
    .unset %kickchan %kicknick 
  } 
  if ($1 = no) { msg %kicknick I'm sorry, you have to have a 0,2Facebook0,1 in order to join this channel. 
    timerfbkick off 
    kick %kickchan %kicknick 0,2Facebook0,1 = No  
    .unset %kickchan %kicknick 
  } 
} 

this should work for ya