[wp-hackers] Reason for Replacement in the_content()

[Andy Skelton]

>    $content = str_replace(']]>', ']]>', $content);

This is necessary for feeds. CDATA wrappers do not nest. If this
string is in a post and you leave it intact the content's CDATA
wrapper is prematurely closed and the feed becomes invalid XML. You
shouldn't put CDATA wrappers in a post. But at least if you do, the
feed won't break.

Andy