资料来源 : Free On-Line Dictionary of Computing

Bad Thing
     
         (From the 1930 Sellar & Yeatman parody "1066 And All
        That") Something that can't possibly result in improvement of
        the subject.  This term is always capitalised, as in
        "Replacing all of the 9600-baud modems with bicycle couriers
        would be a Bad Thing".
     
        Opposite: {Good Thing}.
     
        British correspondents confirm that {Bad Thing} and {Good
        Thing} (and probably therefore {Right Thing} and {Wrong
        Thing}) come from the book referenced in the etymology, which
        discusses rulers who were Good Kings but Bad Things.  This has
        apparently created a mainstream idiom on the British side of
        the pond.
     
        [{Jargon File}]