Going off of
@Reformed 's post, I think that these passages apply to the OP and Christian behavior even with just an online presence:
John 13:33-35 "Little children, I am with you a little while longer. You will seek Me; and as I said to the Jews, now I also say to you, 'Where I am going, you cannot come.' "A new commandment I give to you, that you love one another, even as I have loved you, that you also love one another. "By this all men will know that you are My disciples, if you have love for one another."
Matthew 6:14-15 "For if you forgive others for their transgressions, your heavenly Father will also forgive you. "But if you do not forgive others, then your Father will not forgive your transgressions.
Romans 14:10-13 But you, why do you judge your brother? Or you again, why do you regard your brother with contempt? For we will all stand before the judgment seat of God. For it is written, "AS I LIVE, SAYS THE LORD, EVERY KNEE SHALL BOW TO ME, AND EVERY TONGUE SHALL GIVE PRAISE TO GOD." So then each one of us will give an account of himself to God. Therefore let us not judge one another anymore, but rather determine this—not to put an obstacle or a stumbling block in a brother's way.
1 John 2:3-6 By this we know that we have come to know Him, if we keep His commandments. The one who says, "I have come to know Him," and does not keep His commandments, is a liar, and the truth is not in him; but whoever keeps His word, in him the love of God has truly been perfected. By this we know that we are in Him: the one who says he abides in Him ought himself to walk in the same manner as He walked.
Romans 12:1-2 Therefore I urge you, brethren, by the mercies of God, to present your bodies a living and holy sacrifice, acceptable to God,
which is your spiritual service of worship. And do not be conformed to this world, but be transformed by the renewing of your mind, so that you may prove what the will of God is, that which is good and acceptable and perfect.
1 John 4:20 If someone says, "I love God," and hates his brother, he is a liar; for the one who does not love his brother whom he has seen, cannot love God whom he has not seen.
Ephesians 6:10-12 Finally, be strong in the Lord and in the strength of His might. Put on the full armor of God, so that you will be able to stand firm against the schemes of the devil. For our struggle is not against flesh and blood, but against the rulers, against the powers, against the world forces of this darkness, against the spiritual
forces of wickedness in the heavenly
places.
1 John 3:13-18 Do not be surprised, brethren, if the world hates you. We know that we have passed out of death into life, because we love the brethren. He who does not love abides in death. Everyone who hates his brother is a murderer; and you know that no murderer has eternal life abiding in him. We know love by this, that He laid down His life for us; and we ought to lay down our lives for the brethren. But whoever has the world's goods, and sees his brother in need and closes his heart against him, how does the love of God abide in him? Little children, let us not love with word or with tongue, but in deed and truth.
Galatians 5:18-26 But if you are led by the Spirit, you are not under the Law. Now the deeds of the flesh are evident, which are: immorality, impurity, sensuality, idolatry, sorcery, enmities, strife, jealousy, outbursts of anger, disputes, dissensions, factions, envying, drunkenness, carousing, and things like these, of which I forewarn you, just as I have forewarned you, that those who practice such things will 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 things there is no law. Now 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 not become boastful, challenging one another, envying one another.
The question is - How is your walk? Is having an online presence, for you, an opportunity to sin? When arguments get heated, do you apologize and forgive or do you harbor resentment? Is your online presence godly? Does it testify to your faith, to Christ?