At a glance I can't tell what the heck 1234 means. I have to look up whether its lp,lk, hp, hk in that order or if its lp,hp, lk,hk instead.
Its why I think folks wont exactly be attracted to MK numbering notation for Injustice if you are trying to draw folks in to discussions. L is an obvious abbreviation for Light so why not keep it so simple that even a GUESS could get it. Remember folks not everyone played MK nor did they get into its notations. As a guy with very little MK time I'll flat say looking at your discussions were confusing as hell for me and I had to look up and check things for a good while. Heck since I stopped playing it I still do if I want to remember anything.
Its the same with KoF XIII's ABCD notation. You cant tell at a glance whether its lp,lk, hp, hk in that order or if its lp,hp, lk,hk instead. Right now for those who don't play KoFXIII look at ABCD and tell me if you can safely tell without google help what that means? You cant really.
Thats why I strongly feel we should go with abbreviations for the attacks like L, M, H, S. The only one of those that may need changed is S because its not called special its called Gimmick and that would mean L, M, H, G.