On Mon, 10 Jul 2017 15:15:35 -0400
"William L. Thomson Jr." <wlt-ml@o-sinc.com> wrote:

> # emerge -pC tomcat-servlet-api
>  * This action can remove important packages! In order to be safer,
> use
>  * `emerge -pv --depclean <atom>` to check for reverse dependencies
>    before
>  * removing packages.

Rather than a message like the above. I think portage should generate a
message/warning saying you are removing a package that is not in your
world file. Which means you are removing a package you did not install
directly. Just like if you were to remove a system package.

That way people would know if they are removing something that is a
dependency. 

--
William L. Thomson Jr.