I'm against itLife under 0 means you are uncounsious, under -20 dead. So it makes perfect sense and there is still ~cuttheveins if laying on the ground bothers you to much. Lately I was knocked down for -13hp and my healing rate was 1. Yea i survived :>
Only when you are out of combat. Otherwise people will just start superstimming themself in pvp.
You must be happy that you still "alive" at negative HP and your allies can heal you. Usually you dying at 0 HP at most games ;pSo <=0 HP = only others can help you, not you.
If you want to make enemies, try to change something.