Nope, Hitler vermelden in een discussie over dictators is ontopic en mag, en daarvoor bestaat een uitzonderingsregel. ;-)
The law and its corollaries would not apply to discussions covering known mainstays of Nazi Germany such as genocide, eugenics, or racial superiority, nor, more debatably, to a discussion of other totalitarian regimes or ideologies, if that was the explicit topic of conversation, because a Nazi comparison in those circumstances may be appropriate, in effect committing the fallacist's fallacy, or inferring that an argument containing a fallacy must necessarily come to incorrect conclusions.