Big disagree. ABIT were the kings of build-your-own-PC in the 90's up through the early 2000's
How is a small motherboard manufacturer 25 years after minor popularity in a sub-community not niche of niche?
Hacker news is IMO a niche community anyway, and I'd say the crossover between people who built their own PCs 25 years ago, during the golden years of overclocking and hacker news readers is pretty huge actually.
If you don't think this sort of article is a good fit here I don't think you are really in the target demographic anyway.