When doing Waterfall Quest it would buy an enormous amount of supplies as it dies quite often on level 3's. I think the falador teleports were used in an earlier version of the script a lot to bank after deaths as in these early versions it would always bank at falador, unlike now where it can detect the closest bank and just use that one instead. I'll rewrite Waterfall Quest in the following days because a lot of the code in there (like the falador teleports) that is outdated and I have better code for it, and it's a really popular quest because it's done on level 3 accounts.