Why there isn't a flashing red warning label at the very top of that page, I have no idea. This is one instance where I would actually sanction using the <blink> tag.
To be fair, there is a big red warning box further down that tells you using it with user-supplied data is a very bad idea, and there are flags available to prevent overwriting existing symbols.
None of which the 4chan code actually uses.
I've never seen the utility of extract -- it's the recommended way of getting wordpress plugin parameters, but to me, just using whatever array you're extracting from is always a better solution.
