Good that you're aware of using a jail; suggest that your next improvement be a system of moderating the AnonyUser updates before they're public and providing (requiring!) meaningful titles.
in reply to copy perl and some modules into an offline OS
IMO, that list list of "untitled.pl" scripts is something a reasonably cautious individual would spot and run from.
And, please, use PM markup -- your link is borked!
If you didn't program your executable by toggling in binary, it wasn't really programming!