How were they "flippant"?
Ok, Marajade..one more time. I told you before how Catholics revere the Holy Name of our Lord Jesus Christ. We even have churches named "Holy Name of Jesus."
You have seen how many Catholics have come forward tonight to tell you that saying JC is not a proper way to address our Lord. You're big on dictionary meanings. Webster's states that flippant means "lacking proper respect or seriousness."
When you address the Lord as JC, it is lacking proper respect or seriousness" that our Lord certainly expects of us and should be given to Him. He died for your sins and mine. He certainly deserves the most respectful address we can give Him.