Let Godwin run its course for now and lets discuss Hitler and the Nazis then
(Actually Godwin does not apply if the discussion STARTS with that as a topic).
I wonder if Godwin's Law is recursive - ie any discussion eventually degenates into a discussion of Godwin's Law ..... ? Because once a discussion gets onto the Nazis then it tends to move on immediately to a discussion of whether Godwin's Law in invokable or not.
In fact I have a corollary to Godwin's Law, especially where Americans are involved (try Slashdot.org). If a discussion does not end up in flames about the Nazi's it ends up in flames about gun control law and/or some (usually 5th) Amendment of the US Constitution. It is incredible the range of actions and opinions some Americans consider to infringe their Constitution - more or less anything against their own opinion as far as I can make out.
I see more discussions breaking down into Gun Law and US Constitution issues than into the Nazis these days and I think it is because the latter are fading into vanilla flavoured history now, joining previous historical bogiemen such as the Kaiser, Napoleon (who many contemporary English seriously believed was the Devil), Ivan the Terrible, Genghis Khan, Richard III, and (in Henry VIII time) the Pope.
But now we have Napoleon Brandy, Richard III verging on Sainthood and visits from the Pope - perhaps we will even see Hitler Hock sold in Tescos one day?