Because anytime I use it, it doesn't seem to fulfill its duties.
Like with pkmnfrk's signpost script, it should only work if you are facing up near the sign, but it works even when you are facing down.
...But it works with my roll script... I think I need to investigate this more to find out what the problem is... Perhaps it doesn't work in FFC scripts.
Also, as an off-topic sidenote: In the ZScript documentation, you need to change the Waitframe notes to say that only Item scripts are essentially quit on a waitframe, because it says that global scripts are affected too, when they really aren't.