This one kills me. I don't even know what the laws are at the moment regarding this but....
I hate players standing near the ruck (unbound) in that "guardian" role (attacking team). It's often directly between the 1st reciever and the most likely tackler. The only reason for it is to cause an obstruction. Either get into the ruck or retreat.
The law is already there: players have to be behind last feet. It's just one of those things that referees allow routinely and is one of the bad conventions that they follow. It's been going on a while but a young Kees Meuws was one of the foremost early practitioners. Now they stay there as though they have a right, not through law, but through convention. They are honestly puzzled when they are pinged every now on then.
We may as well include in this thread laws that are not enforced but we would like them to be.
1. Pillars being allowed to be in front of last feet. [Good one H.. (of Miami?)]
2. Scrummies not feeding the ball into the scrum straight.
3. Players crabbing around mauls or climbing over.
4. Players using chokeholds in the maul and worse, using them to lever the opponent.
5. Defending THPs being allowed to bore in at scrum time.
6. Attacking players being allowed to go to ground to kill the contest
Notes
1. As discussed above. Years ago defensive pillars used to do the same and for a few years they were facing each other beside the mid point of the ruck. Defensive pillars are now pinged but the attacking pillars are being allowed to act as a shield. No wonder defenders can't get at box kicks.
2. OK - sometimes power hits corrupt the tunnel and the scrummie has no space into which to throw the ball. But he should be pinged at least 50% of the time (a low figure) for when a tunnel is credible.
3. If a player is bound and finds himself in the middle of the maul he can act from there but players like Ali Williams are adept at changing their binds and end up crabbing around.
The foremost practitioner of this was the great Martin Johnson. He annoyed me greatly because he could do something defending the maul illegally which Aussies couldn't do. Sometimes he looked like he was swimming around the maul.
Then there are players that reach over and even pull themselves up and forward so they are climbing - clearly not bearing their weight on their feet and encouraging a collapse.
4. Every side does it every now and then but Bakkies is the worst culprit on the planet.
5. At least a LHP has a bit of an excuse as he naturally goes inside a bit anyway, but what Castro did to young LHP Slipper on the EOYT was obvious, yet Slipper was pinged.
6. Super Rugby is already backsliding from the law crackdown on killing the ball IMO. Defensive players are still being pinged but attacking players are getting away with murder unless someone like Kaplan or Dickinson are refereeing. The French are nearly as bad. The Pom refs are the best in this regard.
In my eyes killing the ball is killing the ball and detracting from a contest. No wonder defensive teams are discouraged from competing at ruck time; so they don't commit when they otherwise could have. No wonder defensive lines are more heavily populated.
[Please no stats on how many tries were scored this year thank you.]