It is certainly impossible to lose respect if you lose out of some stupid discussions.
If not me then who? Confront evil!
Protect your good image from the eyes of negative viewers, who may look at your good appearance with an ugly fiendish eye, and ruin your positive qualities with their chemical infested tongues.
Save your skin from the corrosive acids from the mouths of toxic people. Someone who just helped you to speak evil about another person can later help another person to speak evil about you.