No no, you weren't coming off as rude, maybe a bit dismissive but honestly, I'm not chained to the idea so I don't mind one way or another. ^^; I can see where you're coming from though, and I think you explained your thoughts of Goshikuro better, since he seems like a real maniac in terms just killing for fun and pleasure and not for logical reasons. Maybe for Botan's understanding of the threat, we could have another layer to Goshi's crimes? It doesn't have to be rape but I do still think another element to his cruelty would give at least Botan, more fear of him. 

It probably would make sense to have a peon below him killing people or making people kill themselves, but I do still think it would be more interesting to have him influence the victims personally. Maybe after slaughtering so much, his aura alone (maybe in certain concentrations?) would make people around him kill themselves? Like the essence of Goshikuro has evolved enough to just inflence people to die of their own free will to save themselves from his wrath? Or something. While he is weak, I would like to think that in the span of time, he's been able to get new tricks up his sleeves.