He edited his post and added a lot of words that made it seem a lot less pedantic after the fact.
The original post I received was pretty bare bones originally and gave me a completely different impression than what is written now.
But I definitely overreacted to what was written, even originally.
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"As bad as you make it sound, they are teaching kids stuff, even at less-than-wealthy school districts.
https://nces.ed.gov/datapoints/2019179.asp
By hood or by crook, or by underfunded inner-city/rural public school, we're teaching a hell of a lot of kids to read and write.
I attended elementary through middle-school at a district too poor to offer a high-school chemistry class, and still learned my times tables and how to write a paragraph."
Don't worry about it too much—we appreciate your good intentions. It's just best to review one's comments and edit out anything that might come across as a swipe. (That's what I do.) Remember that comments are 1000x more likely to sound that way to readers—especially the particular reader being addressed—than to the person posting the comment.
And please don't post in the flamewar style to HN generally. We're trying for something different here.
https://news.ycombinator.com/newsguidelines.html