It's worth noting that it's an online presence backed by serious code, which makes Zed worth listening to (and hiring). It seems like many online presences have the attitude without supplying the code.
Zed Shaw's code is insignificant in the face of the contribution of many, many far more talented open source developers who are far less accomplished at leveraging controversy to drive traffic and attention.
The mileage that Zed Shaw has received on a simple well-designed Python SMTP library is absolutely astounding and totally disproportionate to the complexity, novelty, and general market need for the library. His only other notable contribution is a simple, feature-constrained single-purpose micro web server that uses a scaling-limited thread-per-request architecture.
Do you know -- off the top of your head -- who the primary contributors are to Apache? They wrote the HTTP server that runs the web.
[Edit] Why is the reply nonsense? The point is fairly clear -- there are far more established, widely used, complex and important projects that do not have such vitriolic personalities attached. Zed Shaw's known for his blog posts, not because of any proportionally notable contribution to the open source community.
(The original unmodified comment referred to this reply as "nonsense").