Well, there's L1 norms, Lagrange point L1, an L1 visa, etc. In any of those contexts, it's an excellent variable name.

There's also the case of short little utilities. For something like strncmp (or at least my slightly naive version), I'd rather see code like

    int strncmp(const char* s1, const char* s2, int n)
    {
        for(; n>0; s1++, s2++, n--) {
            if (*s1 < *s2) {
                return -1;
            } else if (*s1 > *s2) {
                return 1;
            }
        }
        return 0;
    }

than have code where someone attempted to come up with long "meaningful" names for each variable. There isn't really meaning here beyond "pointer_to_string1" and "pointer_to_string2", and longer names here do nothing but add visual clutter.

What does that have to do with static analysis of C++ source code? Of course that's difficult, but the quiz is also purposefully made more difficult than it would be in real life.