bucket fiddling within a filter

[Brian McQueen]

I see the comment in the sample filter:

       /* It is tempting to do this...
        * APR_BUCKET_REMOVE(pB);
        * APR_BRIGADE_INSERT_TAIL(pbbOut,pB);
        * and change the case of the bucket data, but that would be wrong
        * for a file or socket buffer, for example...
        */

But I can't figure out why it would be wrong.  What is wrong with the
approach shown?

Brian McQueen