[ajsalminen]

I don't know where he has talked about race, maybe the master/slave comment is the one referred to but if you follow those links in the article to the actual posts he made you can see that what he wrote isn't that controversial, he's just not fully supporting changing the master/slave terminology or adding more options to the gender field of a user profile. The author of the article described it as "not agreeing with the SJW party line".