Just to be clear, I have no connection with Naspers now or in the past and only this recent acquisition of SE/SO has brought them to my attention. I also have no personal connection with South Africa.
How does Stack Overflow plan to deal with the fact that they're indirectly owned by a company that has a history of being run by white supremacists?
TLDR SE/SO is owned by a company and it's not realistic to expect them to complain for you about this.
I imagine it would be exceptionally difficult to find a company from that era in South Africa that could not be painted as racist then if you wanted to.
The events being discussed are a quarter of a century ago, and the company has existed successfully in the "new" South Africa (and beyond) since then. How many of the old mangement team (and shareholders and so on) are still in place ? Of those that are, how many could be said to have been in a position to change anything or did more or less than the majority of white South Africans of the time ? Are we attempting to visit the sins of the past generation on the current generation ?
But these companies pledged to do better, eventually came to terms with their nasty pasts, and (hopefully) tried to take steps towards fixing their past mistakes. Naspers clearly didn't do anything of the sort.
I did indicate in a comment on Physics Meta that in 2019 Naspers appointed a black woman to the post of CEO South Africa. This alone surely says they are not now a racist company. From their point of view they have moved on and apologized (probably to the greatest extent their lawyers would allow - no lawyers wants a client to apologize to the extent they would be open to potentially unlimited liability claims).
Whatever about that, it is unrealistic to ask a company owned by another to police the company that owns it. This doesn't make any sense. It would be the tail wagging the dog. The owners would simply replace the complainers, and regardless of whether their complaint was justified, but simply because it would be ludicrous to expect any business to allow it's employees to attack it over such an extremely controversial idea. StackExchange/Overflow cannot in any way influence Naspers on this subject.
It goes without saying that for the most part, no company mentioned in this post is being openly racist or similarly offensive any more, but simply stopping the pattern of misbehavior is not enough, at least in my opinion.
And this is the crux of the problem. What do you want Naspers to do ?
Again, from their point of view legally they're done with this and financially they clearly aren't affected by it. In practical terms the company is reformed (as far as I can tell).
Anyone who remains uncomfortable with that has choices :
- Stop doing business with them.
- Do business but email etc. relevant politicians, etc. to seek to put pressure on them.
- Write to the paper or post a YouTube video - but please have a plan, a goal, that's realistic. Just wanting "more" doesn't do anything - it's vague.
- Do business with them and let it slide.
But what you really don't have is any realistic expectation that SE/SO is going to be in a position to complain for you. That's not how business works now, or ever has. If you want something done, you (and other like minded people) have to do it.