Basically, it is not needed and would be a complete waste of time if the devs decided to implement this.
There is no doubt that when you are in a fight, there are always some very sketchy hits and some players really look like they are closet cheating. If you think that the guy is cheating, then just report him/her with the evidence you got. Implementing the "Reach counter" would not make a huge difference as there are many aspects that would affect it (eg ping, tps spikes, etc). Moreover, if a staff member would like to review the video, there are more ways that they could confirm whether the player is cheating or not.
Even with the reach counter is implemented, there would be still tons of people hackusating their opponent.
Although it is a great idea, I personally cannot see any need or use to implement it, especially It can help nothing.
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