Yes, that comment was not ok but as far as I have seen that is the only comment which keeps getting quoted. All but a handful of people seem to have been civil.
Not to mention that that was a comment on GitHub, not on Reddit, even though the "far, far, far over the line" statement was about "the now-usual Reddit uproar". I guess Klabnik just really dislikes Reddit.
This! It is utterly disingenous - in fact, it is simply lying - to characterise users' interactions with the maintainer here as harrassment, or abusive, or entitled.