dnf even allows to uninstall RPM and systemd without warnings

[Bruno Wolff III]

On Mon, Jun 23, 2014 at 12:53:19 -0500,
  Chris Adams <linux at cmadams.net> wrote:
>Once upon a time, Johannes Lips <johannes.lips at gmail.com> said:
>> Well, yeah and everybody is reading the complete output of yum/dnf if
>> it's trying to remove hundreds of packages?
>
>Well, yeah.  First, if you think you are removing a leaf or minor
>package and the package manager lists 100+ dependent packages, you
>should take notice and perhaps re-think what you are trying to do.
>Second, if you decide you want to continue, you should look over the
>list of packages to be removed.

It isn't just remove/erase operations. Updates can be problematic for 
kernels. distro-sync can also remove some packages while updating or 
downgrading others and that might catch some people by surprise.