Dear Meg:
Forget about all of that stuff posted above. It is true of course, but merely reading it won't be pursuasive.
Simply have your boyfriend ask his bible study-conductor or a JW that he is close to about disfellowshipping. Have the person explain fully to him the JW viewpoint on disfellowshipping.
(But don't stop there!!!!)
NEXT he should ask whether there are ANY DF'd ones right now in the congregation that are attending the Kingdom Hall. If there are, then he should 1) observe for himself how the others treat that person and 2) if possible try to contact that person or better yet go and TALK to that person right in the Kingdom Hall.
THE REACTION THAT THIS WOULD PRODUCE WILL BE ALL THAT YOUR BOYFRIEND NEEDS TO DRIVE HOME WHAT HE NEEDS TO KNOW.
I imagine that he may find anything from fear, surprise, welcome, relief in the reaction of the DF'd one that he approaches (which will be very insightful to him)
and more importantly HE WILL NO DOUBT BE either immediately taken aside, spoken to or soon afterwards approached by his study-conductor, JW friend or an elder who will scold him or inform him that he should shun the DF'd one if he wants to continue on his study. THIS WILL BE ALL THAT HE NEEDS as I think he will certainly have doubts about gettting baptized as a JW after that.
IF THERE ARE NO DF'd ones at his Kingdom Hall then the next best thing for him to do after the initial question to his study-conductor/JW friend/elder is to pointedly ask them:
1) Tell me what would happen to me, how would I be treated if I were to get baptized and some time afterwards be disfellowshipped?
He might further inquire about the specific judicial committee process (which will be enlightening) and he might raise the issue of SINCE HE IS BEING ENCOURAGED TO DISASSOCIATE HIMSELF FROM WORLDLY/NON-JW PERSONS, i.e. get rid of all of his old friends, AND MAKE FRIENDS WITH ONLY JWS, what will be the social impact upon him in the event that he were to be DF'd?? Let him ponder that a while and that will no doubt get him thinking about it too.
hope all goes well,
Eduardo