I avoid using it if I can. I only needed it for the shaded text thing. Since in Blizz-ABS there's an outline text thing, I needed to alias the original method only if Tons wasn't already present.
... Oh wait, I checked for Tons there. xD Anyway, I avoid using it. It seems kinda ruggish to me. What if somebody named a method the same, but it doesn't do the same? It's a bit risky and due to the high variety of RMXP scripts I'd rather have somebody report a "Stack level too deep" error, since I know what's going on, than a new random error which I can't figure out without checking out a demo. ._.;
It's sometimes very, very useful, though. Just be careful when you use it.