I'm having a hard time drawing a connection between the quoted text and your reaction. The author believes that <Technology X> is superior to the alternatives,

I'm having a hard time drawing a connection between the quoted text and your reaction. The author believes that <Technology X> is superior to the alternatives, and wrote a blog post complaining about people who pressure its users to switch away. That's not exactly Jehovah's Witness knocking on your front door to thrust a magazine in your hand. In fact, the conclusion section starts with, "Do whatever you want. Don't learn it if you feel it's too much effort just for nothing.". The gist of this piece doesn't seem to be "converting" anyone. Ironically, it seems to have been inspired by receiving such pressure from others. Half of Hacker News consists of discussing why all users of last week's fad should abandon it and jump onto this week's fad (e.g. "MySql -> Postgres -> MongoDB -> back to Postgres"... "Ruby -> Scala -> Node -> Go -> Rust -> Julia", etc). If you're looking for obnoxious zealotry, there are plenty of better threads in which to look.