Shimei, a friend of King Saul, whom David had replaced, taunted King David as he retreated from Jerusalem to avoid battle with his own son Absalom. He cursed and threw rocks and dirt at David, who was surrounded by armed loyalists. One of them wanted to put an end to Shimei's taunts by simply cutting off his head. David forbade it and tolerated the criticism even speculating that it could be sent by God.
How different from today's social media strategy which seems to be mutual annihilation. No comment is too small to be ignored. Reason and debate are ignored, name calling and personal insults rule the day.
King David shows a restraint not often seen in today's world.