I also find the response to the above article contrasted to the response to this one[1] very interesting. They both do the same thing but with a different target audience. From which one might conclude it's okay to be condescending and insulting to a target group, as long as it's a target group that one does not identify with (directly or indirectly).

[1] https://news.ycombinator.com/item?id=6645925