I don't expect this comment to fly, but I feel it is important to make and so I will.
I understand the OP that there are many who twist the words of God or use them in combination with others' words to justify their own actions. And yes, if we feel someone is doing that and if after praying about it we feel led to lovingly explain how we feel differently then that is right.
However, there are two aspects of this thread I do not think go along with Jesus Christ's teachings and example (I'm not saying these aspects are in each post on the thread, just that at various times while reading the thread or the article pointed at by the OP link I saw suggestions of these ideas). And so, I'll just express my concerns and let the chips fall where they may:
* judgmentalism just doesn't fly in Christianity. I know, some say they're not being judgmental, just defending the Word of God. Well, I have no fear that the Word of God will triumph, my only concern is that the most souls are saved (including mine). If saving the most souls meant seeking out error and departure from the Word of God and presenting it in a logical argument to each sinner on the planet, then I think Jesus would have modelled that for us. I don't think He did. He went to the sinners and encouraged the sinners to come to Him. And unless I'm mistaken there's no reference to Him saying those with lax morals were not meant to approach Him because it would make the surrounding area less "Christian" (yes, I realize some behaviour is totally unacceptable and cannot be tolerated, but there's a difference between bringing havoc to a group as opposed to demonstrating lax moral opinions). In my opinion (though I grant it is arguable) many who crucified Jesus felt they were defending the Word of God.
* the Bible is a very large volume of books. In my opinion (again) it is just not possible to quote from any single sentence of the Bible and use it to demonstrate that what someone else is doing is wrong. If so, why do preachers and Bible scholars study so long and hard in multiple languages? Or look at Jesus' own reaction to the Old Testament law. Sometimes His actions seemed to suggest a lack of direct applicability (His association with prostitutes and lepers, speaking with Samaritan women, reaping on the Sabbath, etc. etc.) and other occassions He seemed to act as though a much higher standard existed than was even called for in the Old Testament (divorce, forgiving 7 times 70, priests should not parade around in fancy robes so as to impress others, follow Him despite duties to father and mother, etc. etc.) Therefore I believe that after prayer (asking for the grace of discernment from the Holy Spirit) and study of the Bible as it relates to a certain situation in my life I can try to make the best response possible, but I won't know for sure how I did or how my efforts assisted or interfered with God's plan until I face Him for my judgment (that's the judgmentalism I'm worried about). Now, sometimes my best understanding of what is right will cause me to bring a concern to another Christian, but I pray that if I have done everything above, that my loving attempt will not be against God's will (though there's no guarantee).
And they'll know we are Christians by our love.