> Can we prevent Nazis from using our software?

Short of engaging in equally authoritarian control-freakery? I don't see how.

I'm amused by one package author that I'll leave unnamed who has a list on his site enumerating political parties around the world at one end of the political spectrum and announcing that supporters of these parties are disinvited to use his work.

I'm all: "Dude, get over yourself. Parties ALL suck. Now, do good, and consider investing less time on posturing."