It is not entirely uncommon for someone to fake a personal online to be 'included'. I have witnessed them (my wife is an avid board member & sometimes mod. on several parenting/mom type sites) for years and still wonder what would make these people do it unless they are really feeling that great of a need to fit in.
That said, I think it is one thing to pretend to have a ton of kids, or to be vegan, or whatever social group you want to belong to. And another to 'have' CF, and join somewhere like here where people will go above & beyond to be suppotive and helpful. This board is full of people and families that are living this every day, my thought is if you are living it as well, then great please come and join, if not then don't take advantage of everyone's goodwill.
just my .02 worth.