My pleasure. I have found that in discussions, often times you must sneak your argument up on them. Separated from an understanding of the ramifications, many people will to agree to things, and even declare them "obvious." Once you've got them to admit to the point, you then show them how the one thing is very like the other. At this point, they will either agree, or suffer a cognitive dissonance. (Some of them do anyway. :) )
In this case you discovered/uncovered a poster who doesn’t know when life begins and won’t confide whether he/she thinks RU486 is good or bad. I’d call that a very good day’s work.
What’s next? Ask him/her if the repeal of DADT was a good or bad thing?
;)