However I could be wrong, I haven't been around on HN for long time.
Also I personally value skepticism, but I come from a semi scientific-engineering background.
It was pretty hammered hard into us lab techs, we need to be skeptical of our bioinformatics results, you never knew what hidden confounding factor could be affecting the experiment. We even tried to use markov models to help find hidden confounding variables.
Edit: On why skepticism is important, its because propaganda is everywhere https://news.ycombinator.com/item?id=9269760