If there's a difference, it's one that doesn't bring the comment within the guidelines. They don't just ask us not to call people names, they ask us not to call names at all:
> When disagreeing, please reply to the argument instead of calling names. E.g. "That is idiotic; 1 + 1 is 2, not 3" can be shortened to "1 + 1 is 2, not 3."