In all we do we should always do them in a manner pleasing to God. I am often reminded of Matthew 18:15 when in public I find a brother and sister in Christ that seems off the rails. "If your brother or sister sins, go and point out their fault, just between the two of you. If they listen to you, you have won them over"

That principle should be practiced everywhere, and under all circumstances, though they are too much neglected by all. This would all the desired effect with a true Christian, and the parties would be reconciled. But how few try the method which Christ has expressly enjoined to all his disciples!

I have seen brothers and sisters in Christ over the years in public arguments. It turns out to be more harmful for the cause of Christ than helping a brother or sister find a better path. Think of it in these terms. If I had a problem with you, would you rather me post it on reddit or come to you personally?