Note that the original pages such as http://perlmonks.thepen.com/159645.html also have "d/l code" links. They might be harder to notice because thepen has chosen to disable the normal underlining of links so we don't have any visual cue that there is a link there. They are also in the middle a very long page (just like they are in the local copy of the thread, Beast of the Number: Parsing the Feral Phone), which adds to the difficulty. I've never understood the desire to remove the visual cue for the location of links and I think this demonstrates why that can be a bad idea.
I've also /msg'd blakem, who graciously set up and maintains the thepen mirror (in part so that Google doesn't index chatterbox conversations -- yes, there are other ways to accomplish this but thepen is working and the alternatives still aren't, yet), asking that he not use the "autowrap" feature as it doesn't work on any browser I've heard tested other than IE. It appears that recent versions of IE are the only browsers that know how to display optional hyphens correctly.
For thepen, I'd personally prefer "old-style" code wrapping with a fairly wide setting (like 120) since there aren't any nodelets and it makes cut'n'paste likely to work most of the time (since those browsing via thepen are likely to not be as familiar with PerlMonks and realize that cut'n'paste is not the best way to grab code).
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tye