I don't think so, because as lazy as people are, they still want their words read, and they excise the irrelevant quoted material to set off their own words bet

I don't think so, because as lazy as people are, they still want their words read, and they excise the irrelevant quoted material to set off their own words better. From experience of the old days, other than a handful of strange people no-one had a problem interleaving context and commentary. It was just the way things work. Top-posting is pure (albeit minor) evil, a tragedy of the commons and a wastage of space. It's also an unforced error: no-one was clamouring for it, but Outlook and Gmail and Notes foisted it upon the world.