Let me ask you, have you been a Christian all your life?
I haven't. I became a Christian at age 22. I became a Christian because somebody loved me enough to tell me the truth, rather than loving themselves so much that they feared offending me and making themselves look bad.
When I was told that I was a sinner, it was hard news to hear but, without hearing it, I never would have understood the Gospel.
I've never understood the whole "let the light shine through you" or, even worse, "preach the Gospel at all times and use words only if necessary" version of Christianity.
All throughout the Bible, we see the Gospel preached, presented, defended, spoken, taught, etc, but we never see anybody say, "Hey, seeing what a wonderful person you are explains to me that I'm a sinner and face God's wrath on Judgement Day unless I repent of my sins and receive, by faith, Christ and His atonement on the cross on my behalf".
Even Jesus had to preach the law before He could preach the Gospel to the unregenerate in order to make them understand their need for the Gospel. How are we any different.
While I'm not sure that Savedfromdestruction is applying Eph 5:11 in the best way in this context, I do agree with the spirit of his post that, rather than having a superficial fellowship that is based more in a fear of offending someone, if we love Timmy, we will tell him the truth that the Watchtower cannot save him, that Jesus is not the Archangel Michael, and that Christ will save him if he repents and receives, by faith, Christ and His atonement on the cross on his behalf.
Proverbs 27:5-6 says: "Better is open rebuke than hidden love. Faithful are the wounds of a friend; profuse are the kisses of an enemy."