It can honestly damage a player's PC. It never happened to me it happened to another guy I know, and apparently his laptop was really fast until that then it turned a tad slower.
what if i make my own admin commands and make the crash command called /noob
then what
and also
:crash user doesn't harm your computer
:crash user, user, user, user, user, user, user, user, user, user, user, user, user, user, does
Save the plants!
Crash doesn't harm your computer unless;
A. You have a REALLY poor/old computer
B. Roblox has a way higher priority than it should
Crash is just an infinite loop, run in a localscript, which causes the client running it to freeze.
The Roblox program doesn't handle the infinite loop well, so it crashes.
It cannot damage your computer any more than any other program crashing can.