In no way would I question anyone's Christian bonafides (in fact as a Christian, I'm commanded NOT to do that). But I do feel free to rebuke any Christian whose behavior does not reflect well on Christ.
We are never, EVER to come across as finger-waggers, even as we point out error and sin. Look at Christ's behavior with the adultress, or the woman at the well, or the Rich Young Man. He was very direct, he was not afraid to point out sins "...in fact, the man you are now with is not your husband..." . However, the text makes it clear that Jesus didn't shove it in their faces, he didn't belittle them; you do not picture Jesus screaming and wagging his finger when pointing out sin. In fact, quite the opposite.
When a person screws up, even if they won't admit it at first, our job as representatives of Christ is not to Accuse, but to say, "Ive screwed up more times than I can count. Thank goodness I've learned a better way".
A few have posted here with the latter attitude, most have chosen the former. It is NOT very Christ-like.
I agree. And if you read my posts, you will see that I was not screaming, or judging. I just happen to have a stalker who can't let it drop. She has repeatedly accused me of not being a Christian, because I don't share her desire to kill disabled people. It's sad, but what can you do?