[nreece]

Imo, ease and multi-line HTML readability of CDATA outweighs that one edge case (it cannot directly contain its own terminator).

[senfiaj]

But are most people going to read raw RSS? Just out of curiosity, I checked HN RSS, it still escapes character in a regular way (without CDATA) for titles. So, just keep 2 versions of XML escape instead of one?