Additionally, in this case wycat's points are highly relevant to the topic at hand; the article is about churn, and wycat talks about how he addresses that problem in the context of a JS framework.
The last time I talked on Hacker News about Ember was in the comments about Ember 2.0. Before that: months ago. Most of my recent comments have actually been about Rust, not JavaScript at all!
It can be difficult to not self-promote when you feel strongly about the utility and quality of something you work on.
And, we being somewhat to relatively smart people, can forgive the unmasked market-speak to appreciate the value of the personal experience wycats is sharing.