Lisa,
I never read the post, either (I have to agree with Diane about "been there, done that"), but I don't think you ever have to apologize for the way you feel. Just as you explained, we are all affected by CF, but our individual life stories are so different. We all have a different history. We've all encountered people throughout our lives (some thoughtful and sensitive, some not so much) who have molded our attitudes and beliefs towards this illness.
I actually regret that the post is now locked and I can't read anyones' thoughts. I don't agree with locking the posts. I think people should be free to express themselves without reprocussions, but that's an issue for another time.
p.s. so glad Kari is hanging in there!