It is inappropriate because it is bearing false witness to hide the truth and to pretend everything is okay which is breaking one of the commandments.
Jamess 4:17 Therefore to him that knoweth to do good, and doeth it not, to him it is sin.
To have the truth and not give it is sin.
Secondly, Paul disputed daily so when you ask what the Biblical Christians would do, would that still be your response?
Acts 17:17 Therefore disputed he in the synagogue with the Jews, and with the devout persons, and in the market daily with them that met with him.
I'm sorry you would want to use me like that because what you are asking me to do is be deceitful and withhold the facts from people.
New International Version
"'If anyone sins because they do not speak up when they hear a public charge to testify regarding something they have seen or learned about, they will be held responsible. - Leviticus 5:1 NIV (C) NIV
http://biblehub.com/leviticus/5-1.htm
My church held to the truth that if you don't speak up, it is sin. Speaking about the truth is where you get arguments, etc.
Revelation 19:10 And I fell at his feet to worship him. And he said unto me, See thou do it not: I am thy fellowservant, and of thy brethren that have the testimony of Jesus: worship God: for
the testimony of Jesus is the spirit of prophecy.
A majority of the verses in the Bible are prophetic.
A definition of prophecy is:
1.prophecy
1.a discourse emanating from divine inspiration and declaring the purposes of God, whether by reproving and admonishing the wicked, or comforting the afflicted, or revealing things hidden; esp. by foretelling future events
http://www.blbclassic.org/lang/lexicon/lexicon.cfm?Strongs=G4394&t=KJV
So when we withhold truth, we are in a sense bearing false witness against the truth by withholding the truth. In court, we are told to tell the truth, the whole truth and nothing but the truth. Prophecy is the teaching of the Bible and when we withhold truth, we are covering the prophecy by withholding it which is lying.
Matthew 5:15 Neither do men light a candle, and put it under a bushel, but on a candlestick; and it giveth light unto all that are in the house.
There is more classical teaching on this but I would have to ask my friend who is a pastor so I can remember it.
But by withholding the truth, others will hold down the truth in unrighteousness:
Romans 1:18 ¶ For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who hold the truth in unrighteousness;
The truth is being held down.
Heaven won't be like that:
Revelation 21:27 And there shall in no wise enter into it (where God dwells) any thing that defileth, neither whatsoever worketh abomination, or maketh a lie: but they which are written in the Lamb's book of life.
And Paul disputed daily as the scripture says so if Paul could get a following in spite of disputing then that is real when others who want to gain a following from non argument and can't. I would say that Paul's witness was stronger than the truth that you are all getting today. There is something wrong when people want to do things not Paul's way or not Jesus' way and when they were just the opposite and they had a stronger following.