[edave64]

Have you ever executed a script you didn't write? It's handy to have a runtime where you can see what a script can do from its permissions.

I'd generally like to see more languages with APIs for untrusted sections. If I know my program reads e.g. paths from untrusted files but should only ever access it's own folder, it would be nice to have a way to ensure that I can't get tricked into accessing something outside of it.

[losvedir]

Actually, the use case of running other people's scripts is pretty neat. I audit pretty closely the code I use in my projects for work (the use case I was thinking of), but having Deno as a scripting platform, and running a script someone shared is a pretty neat place to apply the network/disk limits.