The Torah gives us an important rule in relationships: Even though you are suffering, you have no right to cause suffering to others. Whatever your distress, you still need to speak and act with respect. If you are ever in a bad mood, be especially careful not to speak or act to others in a way that will be distressful for them.
Sources: see Rabbi Eliyahu Eliezer Dessler – Michtav MaiEliyahu, vol.4, 246; Rabbi Zelig Pliskin’s “Consulting the Wise”
This definitely has applications in the blogosphere and social media in general, but I’m not sure what the result would be. I suspect each group would interpret it to mean “listen to me and anyone who disagrees with me should shut up,” but that’s just a guess. Oops. I think this means I may not have taken the Rabbi’s advice to heart.