If you are aware of a few known risky commands, you may avoid falling into the traps of trolls trying to trick you into running commands and messing up your system.
As you gain experience and know the meaning and usages of the commands and tools, less will be the chances of destroying your system with silly and tricky commands.
It is good to see at least for the rm command there are some failsafes.
See
10 Destructive Linux Commands You Should Never Run - It's FOSS#
technology #
Linux #
opensource 
Here are some common dangerous Linux commands that trolls try to trick you into running and messing up your Linux system.
