Re: Has anyone got black friends/colleagues they could ask?
As a black person, I try not to think about it. But, I AM conditioned to respond to the word "black" when i hear or see it as referreing to me or someone similarly "melanin enhanced" like myself. But then again, context is king. So I always try to appropriately consider if "black" is not being used in a negative context or is not being used to mean unwanted/undesirable. Unfortunately, it quite often is. I wish it would be used more often and in more positive and uplifting contexts than when referring to the purported length of my ...nose.
Clearly, not all terms are equally offensive, some terms are more so and Master-slave comes to mind as an egregious example which could easily have been avoided: I for example would personally have gone with names like "controllers and drones", or "primary and secondary", or "primary and subsidiary". But masters and slaves? really?
And don't even get me started on the whole slippery slope argument: Slave owners in the south actually argued that: "We should not grant ‘colored men’ freedom from slavery, because this might cause us to grant them all sorts of other freedoms such that ‘a colored man might be the next governor; and colored men might constitute their Legislature, and sit on the bench as judges in their courts’". Now that's one heck of a slippery slope argument.
But that's just me, forgive my long-winded rant. To finish my thoughts and to answer your question thoroughly, terms like Blacklist get a tired smile and a shrug if I'm directly asked about it. I wouldn't have named it so, but I can ignore it as not being as deeply offensive as others - you have to pick your battles.
I obviously do not speak for all black people, these are strictly my personal views.
Anon for obvious reasons.