I think that political correctness should only go so far, and to me any one of these is a waste of breath. I've never met anybody that figured master/slave is racially insensitive, since slavery has nothing whatsoever to do with race. Slave as used in this context comes according to the dictionary (merriam webster in this case) from this meaning "3 : a device (as the printer of a computer) that is directly responsive to another" , not from the one-human-dominates-another meaning.
As for 'blacklisting', that's just too funny to even take serious. Obviously according to people that have a problem with the word 'black' in any context we should probably eradicate the word from all uses, it says more about those that are so sensitive than about the words.
Either this is a very clever troll or an extreme case of oversensitivity to 'hidden meaning' in ordinary words.
George Carlin said it best, there are no bad words, just bad intentions.