The obsession of men with title, being or not being, is nothing but futility...
We are not here to judge "he's a christian, he's not a christian". What matters is what God says, and will say. And the Lord says 'he who denies me before men, I will deny him before my Father in heaven'. Men worry about what men say... But if we are going to call ourselves christians, we should start worrying about what God has to say.
Why judge before the time? Rather we should see what the standard is, and understand what we are up against, then move forward in hope.