ADCC gives negative points for butt scooting.
The IBJJF eventually instituted a 20 second timer on the double guard pull.
The Abu Dhabi World Pro DQ'd both Miyao and Keenan for refusing to come on top and try to pass guard.
Copa Podio now penalizes the lapel guard.
Now.....the great debate?
What comes next?
Should the IBJJF ban guard pulling outright?
Do I want to watch two elite black belts battle for a takedown for 7-8 minutes?
What happens when they realize why some grips are banned in Judo? Will they ban those grips on the feet but not on the ground? Will players start playing on the feet to avoid penalties and simply counter-takedown ala the ADCC where I watch Cobrinha and Rafa slippery wrestle for 15 minutes instead of what I came to see which was submission grappling?
Should the IBJJF pan other largely defensive grips which make passing inordinately difficult?
If you ban feeding the lapel around your own leg, should you also ban passing it behind your opponents neck because I can use it to break down my opponent's posture and prevent him breaking open my guard and thus passing?
Why not ban the Berimbolo because of what it did to standing guard passing in Jiu-Jitsu?I may overreact or scream bloody murder because I started off grappling in Judo.
I was out of competition due to an ACL reconstruction right around the time they first made the leg grab an automatic disqualification (intentional or not).
By the time I speak of this,
now there is more mat work in Judo but you cannot lock your hands around the waist, grip fighting is largely limited and penalized and the times required to win by pin are even shorter,
producing a hyper aggressive, casual TV Olympic-viewer friendly version of what used to be Judo.
There always looms the desire for our sport and legitimacy, money, visibility, notoriety, and validation that the Olympics brings, but the IOC (International Olympic Committee) that very nearly succeeded in removing one of the original Olympic sports, wrestling, controls the rule set and the direction all other sport then takes underneath that heading. My point is simply that even Rickson now seeks with his new federation to produce a new type of competition for Jiu-Jitsu that makes it less about sport and more about the original essence of Jiu-Jitsu, but that essence is always in the eye of the beholder.
There will always be a need to stop and consider the effect(s) the rule(s) have on the sport and the style of play/competition. Wrestling comes to mind. Have anyone explain to you all the rules for leg ride points, pins, technical-whatever-the-*&^% and it's a turn off to becoming engaged with the sport.
Ultimately, I shudder to think what happens when we start banning techniques we don't like, but this will ALWAYS be subjective to the powers that be, and there will always be the slipper slope of getting ride of things that certain people or groups do not like. The purpose of the rules is not to enforce a particular style of play based on allegiance to mentality, a personality cult, or a dreaming of the way it was in yesteryear when the sport was also not nearly as professional an endeavor.
The purpose of rules is not to simply ban what we don't like or disagree with due to our own bias, be it personal or inculcated.
You want a submission oriented Jiu-Jitsu? Do Submission Only Events like US Grappling puts on.
You want grappling tournaments with rounds and restarts? Do the Hayastan grappling Challenge.
You want the IBJJF rule set, they do their calendar all year round.
You like the old rules of Judo, support a Freestyle Judo Rules tournament or better yet run one in house.
What you want is out there and you as the competitor and also the consumer get to decide to whom you give your support and patronage. There's room for everything and this is why I like Rickson's statement that he's not trying to compete with anyone. There is a bit of that sense that he still thinks his rule set and particular emphasis is superior, but he's Rickson, so WTF do I know?
There will always exist a natural urge to think that what you're doing is the one true way and anything else is suspect or even perhaps deleterious to the art to which you personally ascribe, but in that myopia you can stifle your own appreciation for related skills or even a deeper understanding of a particular facet of your own style of grappling.
Cornelius vs Magalhaes - Cornelius is a beast, as evidenced by his NoGi performance at the ADCC, but Magalhaes has won the ADCC and has faced the likes of Fabricio Werdum and nother insane notable. I don't see Magalhaes finishing the squirrely Keenan, but I see Magalhaes coming as close to dominating Keenan as we've seen someone do in NoGi. 
