Rather then fanaticism I'm going to second that I find it to be a useful signal. The people that I find worthwhile to read generally have an interest in tinkering and exhibit curiosity about what's under the hood. Same reason HN lends itself to better discussions than other venues.

Very approximately: there's a group that took the time to understand and attempt to build something robust, a group that has no interest in web except as a means to an end so threw it at a well reviewed static site generator, and a group that spent time futzing around with a rube goldberg machine yet didn't bother to seek deeper understanding.