Fair enough, I agree that the author was guilty of the kind of continent-wide generalisations that's always misleading.
I was just a bit confused by the parent post's reference to South Africa, which was a bit off-topic as the author is from Zimbabwe. My assumption was that there were two possible explanations, that the post's author confused South Africa with Southern Africa, or that they considered South Africa to be so much of an outlier in this regard (which it isn't) that the submissions from South Africans weren't relevant. Either explanation would be wrong and worth correcting.
I was just a bit confused by the parent post's reference to South Africa, which was a bit off-topic as the author is from Zimbabwe. My assumption was that there were two possible explanations, that the post's author confused South Africa with Southern Africa, or that they considered South Africa to be so much of an outlier in this regard (which it isn't) that the submissions from South Africans weren't relevant. Either explanation would be wrong and worth correcting.