Board Thread:Theories and Speculation/@comment-1512913-20161119171442/@comment-25122992-20161128224245

C`mon, KG of Gengetsu can be as much as a simple error, on pair with those who don't list Muu as a Water Release user despite his camouflage jutsu using water. So far, there's no other evidence Gengetsu has any KG of sorts.

Although characters' natures are too often listed to treat them as errors, they aren't always true as well (the same example with Muu). If there's no obstacle for the certain character not to use some techniques/abilities, it doesn't automatically mean that he could possibly use them. By that logic, Naruto can be given a lot of Wind Release techniques just because he can use this nature and can potentially learn them all, yet until he actuallly displays them/will be stated to be their user (in official materials), he can't use them by default. What is more important, I don't think the KG is listed in either of the profiles of Onoki/Muu, which is enough evidence to say they don't possess any, along with the fact they never demonstrated any KG in the series.