Stomps should totally be legal. Whats the difference between taking a front kick to the face ala Silva and getting stomped on the ground? Id be willing to bet a headkick has a lot more foce than a stomp
Dude dont ever add these... Or soccer kicks that will make people think even less of mma as they already do and that shows no martial arts skill to do that
Before we deal with any of that sillyness maybe make it legal to kick a guy in the head when he's in your guard punching you in the face? An' yellow card fer sure.