Can't really picture anyone doing that as a "just trying to have fun" thing.
A chaotic evil would be destroying out of greed or hate.
To me, that's not a "neutral" thing. It seems like it was only luck that the rm-ing didn't work, else there would be a bunch more unhappiness.
People do run Gentoo on production systems. Though they obviously shouldn't pull straight from upstream without some real testing before deployment, in the real world it does get done.
> He isn't doing it for a specific reason but because he can. That's neutral.
If the action is to just do something harmless ("echo 'Couldn't have rm -rf-d you there!", then sure it could be seen at neutral. But it was clearly an attempt to destroy other people's stuff or work. That really doesn't seem very neutral to me. :)
It's just of the transient "I had fun from it" kind, instead of something with more tangible rewards (as you mention).
If it was just someone having a lark, there are plenty of ways to do that other than literally attempting to destroy everything they can access. ;)
Malicious is malicious.
/*
, not rm.
It expands to /bin /etc /lib and such and is not covered by the sanity check.