BTW I did a search on his alleged stuttering and could find no reference to it anywhere. So I don't know where you got that idea from.
Do you ever listen to him on Firing Line? He used to stutter like crazy, particularly in later years. It can’t be that hard to find.
Buckley was a great thinker and debater. But he had so many pretentious mannerisms and bizarre affectations that anyone would be amused by them.