Update: Correction added. When I initially wrote this up, I presumed that since Harada brought up both sides for corpse kicking that he meant the new method would be one that one please both sides. This was not the case. He just stated that there's a new ('画期的' was used to describe it.) structure in place put into T7 FR for corpse kicking after hearing both the majority and minority side's opinion on the matter. You'll still have to wait for T7 FR to see what it is. Apologies for the misreport.
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'死体蹴り' for those who don't know is the act of continually beating or attacking an opponent even after you've won. It's translated literally as 'Corpse Kicking' so the concept is pretty much beating a dead player. In Japanese gaming culture, there are people that identify this behavior as a form of bad manners and will take offense towards this. This does take serious form in fighting games over there since people do get heavily invested in matches. The Tekken games has been having this issue too for a while now since after the opponent was defeated, there was time to sneak in extra attacks before the start of the next round. Tekken Tag Tournament 2 completely avoided this issue by no longer allowing any kind of attack after the match was over (unless they were wearing certain custom items.) This in return, has displeased those that missed the chance to do anything like a taunt or whatever after a win. After dumping his thoughts and weighing the pros & cons for corpse kicking, he briefly teased that a new structure is put in T7 FR for corpse kicking. The original tweet in Japanese can be seen here:
Harada tweet ≫ https://twitter.com/Harada_TEKKEN/status/690375692148740097
Thanks Kakuge-Checker.