This philosophy disturbs me, and reminds me of the rationale for

    censorship in dictatorships and police states. Admitting the

    existence of something.... even referencing it.... does not give it

    legitimacy. Should we remove any reference to nazi germany from our

    history books in order to avoid legitimizing the nazi point of view?
They're not the same kind of question.  Talking non-free software as a

phenomenon is different from telling people about specific non-free programs

they might want to use.
Having recipes for non-free programs in the ports system is more like

including present-day neofascist web sites in the list of "interesting

links" in your web site.  I am against censorship, so I do not believe

in closing down those neofascist web sites.  But I won't refer people

to them.