This is a good point. When I first got dropped to a shell in a broom/IT closet, I thought gees I hope I don't accidentally fuck anything up. 4 days later I had to acknowledge I could barely intentionally fuck anything up.
I imagine people looking to be disruptive will seek out a 'start9' equivalent. I don't know whether or not there is one.
Instructions unclear, have acme window on screen
They could ssh somewhere and commit felonies.
Who would get the blame though?
Whoever gets named by git --blame
Nobody that actually wants to commit felonies would waste their time doing that.
Don't misestimate 4chan.
Presumably the machine wouldn't have Internet access.