It's getting to the point where eye pokes, low blows, fence grabs, and shots to the back of the head need to be point deductions right away. No warnings. Especially no second warnings. Especially egregious fouls should be double point deductions and repeat offences should be disqualifications. Yes, you will get guys like Jamie Varner who exaggerate trying to get a deduction. But it is the referee's job to catch the foul not the fighter's to exacerbate it. The referee needs to be qualified and to be able to discern between a legit foul and a suspect one.
It may be petty on my behalf, but I can not stand fence grabbing, especially when it aids in stopping a takedown. That should be an automatic point deduction.