[nthcolumn]

I know you mean well but no charge should be introduced to mitigate against this stupidity. You are (probably correctly) assuming that the data in question is genuine. Nonetheless it is none of our business. rm -rf /* does not contain a warning message and that is the way it should be.

[kevhito]

Misleading? Because "rm -rf /" does give a warning. From info rm:

  `--preserve-root'
       Fail upon any attempt to remove the root directory, `/', when used
       with the `--recursive' option.  This is the default behavior.

[gh02t]

Yeah long ago it was not to be the case and rm would happily gobble /, but it started with Sun adding protection. It's been the default in GNU coreutils (hence the vast majority of Linux distros) since 2006.

[nthcolumn]

You forgot the * I put in.