WWE took swift action and banned the Buckle Bomb after Kairi Sane became Nia Jax's latest victim to get injured in the ring. The move joins a long list of banned maneuvers, but as the WWE Universe has seen in the past, not all bans are permanent.
With wrestler safety always paramount in professional wrestling, it's understandable that dangerous moves would be banned, and rightly so. The Buckle Bomb has injured Finn Balor, Sting and now, Kairi. However, there are arguably far more dangerous moves listed below that WWE has banned at one point or another.
The Muscle Buster
Although he sits at the announce table now, Samoa Joe was one of the most feared Superstars in WWE. He had power, charisma and the technical skills to back up his threats. To top him off, he had his Muscle Buster finisher. Unfortunately, the move ended the career of Tyson Kidd. Though the move was performed cleanly when the injury occurred, the landing broke Tyson's neck, putting him on the shelf, and permanently ending the use of the Muscle Buster.
The Piledriver
Jerry "The King" Lawler might have brought the Piledriver to the mainstream as his finisher in WWE, but other Superstars have occasionally used it as a regular move within their arsenal after him. However, the extreme danger of the move was never truly highlighted until Owen Hart dropped Stone Cold Steve Austin on the top of his head with a Reverse Piledriver. The move nearly paralyzed Austin, almost ending the skyrocketing career of one of the most popular stars in WWE history. Since Owen's botch, the Piledriver has been banned in WWE, with only rare exceptions given such as The Undertaker's famous Tombstone Piledriver.
Diving Headbutt
This particular move gained world wide attention after becoming a signature move for Chris Benoit. Unfortunately, after the stigma of the Benoit tragedy and the perception that regular use of the move may contribute to damaging CTE, the Diving Headbutt was ultimately banned. However, WWE has allowed limited use of the move for Lars Sullivan, and most notably for Daniel Bryan. Still, even after Daniel Bryan's attempt to revive it, his own issues with concussions and neck issues have prevented WWE from completely warming back up to the move.
Shooting Star Press
While a number of high flying moves have been banned to protect the Superstars performing them, some moves have seen their ban eventually lifted. High flying maneuvers like The Shooting Star Press have returned, and are, thankfully, reserved only for Superstars who know how to pull the move off safely. The Shooting Star Press was banned after Brock Lesnar most famously botched his attempt at WrestleMania XIX, nearly ending his career. However, Superstars like John Morrison and Ricochet have brought the move back from both top rope and standing positions, indicating a shift in the move's ban.
The Stomp
For some inexplicable reason, Seth Rollins was denied his finisher after WWE banned the Curb Stomp, but it has apparently made its permanent comeback after a surprising return in 2018. The original ban of The Stomp made no sense as it has never injured anyone before. However, with concussions and CTE issues front and center these days, The Stomp -- which looked far more dangerous than it was -- likely suffered increased scrutiny by the WWE officials, resulting in its temporary ban.
Needless to say, WWE can be a little lenient with its bans, flip-flopping between who can use certain moves, when they can use them, and how often. However, with wrestler safety of major importance, it's hard to argue against banning certain dangerous moves. As awesome as seeing a unique and high-risk move can be, there's no doubt that the WWE Universe would rather hear, "What a maneuver!" to a mundane move than see the referee's "X" sign after someone botches a flashier one.