That's not to say that your first priority isn't your own sin. It is. Nor is it to say that you ever leave the sinner without direction and hope. But true godly love will speak the truth about sin.
It is a modern farce of pop psychology that says guilt is a bad and evil thing. (Notice that the no-guilt theory is judgmental too, it just transfers the guilt to others.) Truth helps a person face their sin and deal with it. Guilt (deserved guilt for wrong thoughts, words, and deeds) is the sign of a healthy conscience. To understand the gospel of grace you must understand the truth about sin -- your own sin. Otherwise you are hopelessly lost and eternally doomed. The truth about sin is a vital part of the gospel message we are commanded to share with others.
More directly to your statement, "On Freerepublic it appears that discomfort with the sins of others is the rule for most who post here...." Isn't that what you are doing, wagging your finger at fellow freepers? I don't see you confessing any sins. Just like you, other freepers are simply stating what they think the right standards should be. They aren't saying they should live by different standards than everyone else.
"There is likewise no true love that will completely ignore sin. That's a human deception because we don't like to be told we are wrong about anything, so we hang the truth speaker with guilt and shame instead of having to face the reality of our own guilt and shame."
"What then? Shall we sin because we are not under law but under grace? May it never be!" Romans 6:15
"And we urge you, brethren, admonish the unruly, encourage the fainthearted, help the weak, be patient with all men." 1 Thessaloniams 5:14
"... but speaking the truth in love, we are to grow up in all [aspects] into Him, who is the head, [even] Christ," Ephesians 4:15
I can be proud, arrogant, covetous, & lustful. There are times that I pretend I've actually slain the beast of self that snarls from inside my chest.
If you'd like a specific catalog of my sins let me know....