Exactly what it says on the tin, a villain that plans and wishes for their own death from the beginning of the story, and either gets no punishment or dies as he planned, counts as a Karma Houdini?
If they get what they wanted and die on their own terms then yeah they would be a Karma Houdini since they never had to face any retribution for their crimes.
I don’t know about that, don’t villains who took their lives count as Karma Houdini even though they managed to escape punishment? because the only way for deceased villains to be Karma Houdini is their death happens because of natural causes.