Answer:
Die without me, never thank me. Walk right through me, never feel me. What am I?
You can read me both ways I wear; One way it's a number reversed a snare.
I am black within and red without With four corners round about.
I am an activity involving pins flying in the air.
Though not a plant I have leaves. though not a beast I have spine. Though many wouldn't need me I am more valuable than wine.
Do what he says and you'll be fine, don't and you lose the game.