Revven
FrankerZ
Wario's weakest waft is a non-random trip. It's the trip flag and there's no real reason to change it because then that weak waft is essentially useless and... does nothing other than like 1% damage. :|I remember seeing Wario trip someone on a stream and when I asked what did it, everyone said stuff like "weakest waft does that".
So either something randomly tripped and people assumed it was that, or that was in at some point.