I generally agree about that thread, and I probably wouldn't have posted my last comment if I had read this thread first. Indeed, that last post of mine was certainly another branch into wildly off-topic territory, which I apologise for.
Just as a clarification, though, I was referring not capital punishment in general for treason, but to the fact that Britain actually executed people by drawing and quartering in the early years of the nineteenth century. I was unaware that the cruel and unusual punishment concept originated in Britain, but on learning so, I remained baffled as to how Britons could consider drawing and quartering anything other than cruel.
Not intending to reopen that sprawling thread over here, but that thread is locked and the issue doesn't really fit into the other forums. I'm done now, I promise!