Re: Abbrev should preserve case

[Richard Stallman]

    Agreed.  But it has since been (ab)used for things like skeletons in
    programming modes where typing "case SPC" would expand to

         case  in
           *) ;;
         esac

    for those kinds of uses, the capitalization footwork of abbrev.el is
    rather harmful.

In practice, how is it harmful?  You would get undesirable results if
you enter `CASE' or `Case', but that problem is easy to avoid: enter
`case' instead.