Also remember that RAFO has no such filter anyway, so there's nothing to find, however thorough the check; however basic or complex such a check is, RAFO fails it miserably.

Anyway, I admit this is an assumption, but I expect language filters have been around long enough to be fairly standardized; part of the point of having subroutines is to simplify the code not just for the people who wrote it, but for later troubleshooting by that person and others. In fact, IIRC, one of the complaints against wotmania was that Mike often patched old code rather than rewriting it, so that after a decade it was a confusing jumble even he had trouble navigating, and hopeless for anyone else. I doubt there are very many ways of filtering content in common use, or that it would be difficult for a webbrowser to recognize that among the data it receives when linked to a site.

I also still think it's kind of silly to put an exclamation point next to a dead link, as RAFO does with the nonexistent "Rules" section. It's important enough to command attention, but not to actually go anywhere.

Like I said, built for nostalgia, not longevity. It's not my call, but maybe it's time to stop kidding ourselves.