"I always find it best to judge people by what they do, not what they say. "
Yes, that's my rule, too. Still, writing or speaking is an action, too, so I judge based on what people say or write as well.
If someone tells me he or she is a Christian, I must take their word for it. They're "confessing with the mouth," and that's part of the whole deal.
Now, if that person acts otherwise in a way that is not in keeping with the teachings of Christianity, I might consider that person something of a poor Christian, but if he or she proclaims Christianity, then what can I do but accept that?
Certainly you may accept it, but remember my original reply to you was to not accept the the postings of a self selected subset as representatives of a whole. Any mathmatician or scientist (Christian or Athiest) would tell you the same ;-)