How do you know? It might be coded to calculate a value and it's just not working
Joking aside, all this does is further confirm the priority of this is very low (even lower now). Even more so that what you just said is a matter of opinion. I see that sign, chuckle a bit because it's obviously just there as a humerous pastiche, and then get on with my life. If it never changes, the game won't suffer for it beyond a handful of forum members bringing it up maybe once every month or so when they finally spot it (or get touted as evidence that the game's unfinished, rushed or whatever else - simply adding one tiny additional cut to the thousands of other cuts people think are important enough to dilligently report upon, such as pizza boxes and pipes).