Hacker News Reader

This is definitely a specialist feeling the discomfort of not yet becoming a polyglot. Had a CTO like that once.

The author seems to express a deep enough understanding of Javascript to not warrant this dismissive critique.

It's not like he's saying "Javascript sucks," he's outlining specific places where it can cause issues in development compared to the alternative.

Author seems to express a deep understanding of JS quirks and outlines specific places (often rare corner cases) that'd trip a JS beginner.

True, but he also dismisses build chain or cross-compile solutions in favor of a solution that requires a build chain and compile.