I think you summarized what to do quite well:
I dismiss such posts as rantings of a person who is frustrated to the point where he loses any ability to seperate anger from reason.
I have also found it to be advantageous occasionally to take it to private FReepmail where words and posts are not so wrapped up in personal pride and saving face. Much progress can be made in this fashion even while similar efforts on the thread itself will bear no fruits whatsoever.
And I'll openly admit that I have been guilty of rantings of a person who is frustrated to the point where he loses any ability to seperate anger from reason lately, both regarding the homopederasty issue and the Catholic infighting here where I have been maligned and blatant lies have been spread about me.
This is much better than the verbal assaults handed out during the last couple of days. Although I don't think any were directed solely at me, I felt obligated to defend the person about which inflamatory remarks were being made.
And then, we always have prayer and mercy.