Similarly, GitHub acted in a classy way too. Tom helped Andrew throughout the thread without any snark or dismissals that are, sadly, quite easy to dish out. It certainly contrasts with the recent "go away" Tumblr story.
As well as this one: http://news.ycombinator.com/item?id=2152047
I screw up plenty, so I'm no stranger to apologizing to my partner. However, I could certainly take a page from the original poster. My apologies lack a certain degree of class!