Shows your ignorance of the elbow rules of the UFC.
1. They weren't intentional to the back of the head, Lauzon put his head down
2. Those elbows were not illegal, people only know of the 12-6 rule, but don't know the underlying rules about it as it pertains to strikes on the ground.
GTFO noob
Kenny whooped some major ass and deserves all the credit in the world.
I'm kinda 50-50 on your first point. I'll point out right now that I haven't seen the fight and am only going to go by my understanding of the rule. No opinion on point 2 as I haven't seen the fight.
Strikes don't necessarily have to be intentional to get points docked. Primary examples are a inside thigh kick and lands square to the groin. Guy that got kicked goes down and the kicker will usually get docked a point. Shots to the back of the head however, one will usually get a warning.
Rules are rules whether we like them or not. If a rule is set by the commission, everyone has to abide by them and if they are used by a fighter for defence, too bad, live with it. Call it the "Mazzagatti rule" if you want. But IMO, he got the ruling right in the Mir-Lesnar fight. The rules state that there's no striking to the back of the head. Mir did the right thing in defence of the elbows while in half guard by curling up and putting his face into Lesnar thereby exposing to strikes the only part of his head that would be illegal to strike. As Mazzagatti said "In that position, Mir should not have to worry about being hit in the back of the head". I'm sure Lesnar's intention was not to strike the back of the head however he continued to do so after he was warned not to (as the ref has stated) and hence was docked a point.
I think that if it's unintentional and after warnings are giving you lose a point. If it's deliberate, DQ. If one keeps "unintentionally" breaking the rules, you get DQed too after you've already lost points.
On a slightly different note about using the rules, I've seen numerous fighters get on their knees and jump into someone's guard because they didn't want to get a upkick in the face. I've also seen Randy Couture put his hands on the ground while he's being sprawled on and someone's lifting his upper body on the ground to prevent knees to his head.