Re: is this just round 1?
Probably.
There is no end as to what snowflakes can be offended by.
I would genuinely like to know what a black person thinks about the term "blacklist", if he/she knows what it applies to and if he/she feels anything when the term is used.
Personally, I think of blacklist when I use my mail and do not want to receive any more mail from a given address. I have never, ever associated that with any human being whatsoever.