I've offered a fair bit of commentary and advice from fellow bloggers. We shouldn't forget, though, that there are strong Scriptural bases for these ideas. Let's start with the words of Christ Himself and then listen to St. Paul.
"I am praying for them; I am not praying for the world but for those whom thou hast given me, for they are thine; all mine are thine, and thine are mine, and I am glorified in them. And now I am no more in the world, but they are in the world, and I am coming to thee. Holy Father, keep them in thy name, which thou hast given me, that they may be one, even as we are one…I do not pray for these only, but also for those who believe in me through their word, that they may all be one; even as thou, Father, art in me, and I in thee, that they also may be in us, so that the world may believe that thou hast sent me. The glory which thou hast given me I have given to them, that they may be one even as we are one, I in them and thou in me, that they may become perfectly one, so that the world may know that thou hast sent me and hast loved them even as thou hast loved me." – John 17:9-11,20-23 [emphases mine]
If we fail to show love to one another and are not unified, we are failing to faithfully show God's love to the world. If our deeds do not match our words, we misrepresent the Gospel.
"A little leaven leavens the whole lump…I wish those who unsettle you would mutilate themselves! For you were called to freedom, brethren; only do not use your freedom as an opportunity for the flesh, but through love be servants of one another. For the whole law is fulfilled in one word, 'You shall love your neighbor as yourself.' But if you bite and devour one another take heed that you are not consumed by one another. But I say, walk by the Spirit, and do not gratify the desires of the flesh. For the desires of the flesh are against the Spirit, and the desires of the Spirit are against the flesh; for these are opposed to each other, to prevent you from doing what you would. But if you are led by the Spirit you are not under the law. Now the works of the flesh are plain: fornication, impurity, licentiousn
ess, idolatry, sorcery, enmity, strife, jealousy, anger, selfishness, dissension, party spirit, envy, drunkenness, carousing, and the like. I warn you, as I warned you before, that those who do such things shall not inherit the kingdom of God. But the fruit of the Spirit is love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, self-control; against such there is no law. And those who belong to Christ Jesus have crucified the flesh with its passions and desires. If we live by the Spirit, let us also walk by the Spirit. Let us have no self-conceit, no provoking of one another, no envy of one another." – Galatians 5:9,12-26 [emphases mine]
Ouch. I don't I need to add anything to what St. Paul said. 😉
"I…beg you to lead a life worthy of the calling to which you have been called, with all lowliness and meekness, with patience, forbearing one another in love, eager to maintain the unity of the Spirit in the bond of peace. There is one body and one Spirit, just as you were called to the one hope that belongs to your call, one Lord, one faith, one baptism, one God and Father of us all, who is above all and through all and in all. But grace was given to each of us according to the measure of Christ's gift….And his gifts were that some should be apostles, some prophets, some evangelists, some pastors and teachers, to equip the saints for the work of ministry, for building up the body of Christ, until we all attain to the unity of the faith and of the knowledge of the Son of God, to mature manhood, to the measure of the stature of the fulness of Christ; so that we may no longer be children, tossed to and fro and carried about with every wind of doctrine, by the cunning of men, by their craftiness in deceitful wiles. Rather, speaking the truth in love, we are to grow up in every way into him who is the head, into Christ, from whom the whole body, joined and knit together by every joint with which it is supplied, when each part is working properly, makes bodily growth and upbuilds itself in love…Therefore, putting away falsehood, let every one speak the truth with his neighbor, for we are members one of another. Be angry but do not sin; do not let the sun go down on your anger, and give no opportunity to the devil. Let the thief no longer steal, but rather let him labor, doing honest work with his hands, so that he may be able to give to those in need. Let no evil talk come out of your mouths, but only such as is good for edifying, as fits the occasion, that it may impart grace to those who hear. And do not grieve the Holy Spirit of God, in whom you were sealed for the day of redemption. Let all bitterness and wrath and anger and clamor and slander be put away from you, with all malice, and be kind to one another, tenderhearted, forgiving one another, as God in Christ forgave you." – Ephesians 4:1-7,11-16,25-32 [emphases mine]
Again, St. Paul has said what I want to say with far more eloquence and force. Now, how should we apply these teachings to our internet endeavors? How do maintain unity, build each other up, and impart grace with our words? Richard Hall has a suggestion.
"Christians should conduct all their conversation with what has been called 'interpretive charity'. It may well be a familiar turn of phrase to you, but it’s a new one on me and I’m grateful for being introduced to it. It means beginning with the assumption in any disagreement that your opponent is not only sincere but is also rational and holds those opinions for sensible reasons. She is not being wilfully stupid. Secondly — and this is by no means easy — it means restating those views to yourself in the most persuasive way that you can, which for Christians always means seeking their Biblical basis. In other words, the task is to take your opponents strongest argument and really listen to it so that you can restate it even more persuasively. It means looking at others in the best possible light."
That ought to sound awfully familar to someone familar with Scripture.
"If I speak in the tongues of men and of angels, but have not love, I am a noisy gong or a clanging cymbal. And if I have prophetic powers, and understand all mysteries and all knowledge, and if I have all faith, so as to remove mountains, but have not love, I am nothing. If I give away all I have, and if I deliver my body to be burned, but have not love, I gain nothing. Love is patient and kind; love is not jealous or boastful; it is not arrogant or rude. Love does not insist on its own way; it is not irritable or resentful; it does not rejoice at wrong, but rejoices in the right. Love bears all things, believes all things, hopes all things, endures all things. Love never ends; as for prophecies, they will pass away; as for tongues, they will cease; as for knowledge, it will pass away. For our knowledge is imperfect and our prophecy is imperfect; but when the perfect comes, the imperfect will pass away. When I was a child, I spoke like a child, I thought like a child, I reasoned like a child; when I became a man, I gave up childish ways. For now we see in a mirror dimly, but then face to face. Now I know in part; then I shall understand fully, even as I have been fully understood. So faith, hope, love abide, these three; but the greatest of these is love." – 1 Corinthians 13
What relation does this have to interpretive charity? Well, the Greek word for love that's used here, agape, is used in Scripture to denote sacrificial love, such as described in John 15:13, and is sometimes alternately translated as charity. Let's try giving each other some slack and loving each other as Christ commanded us.