Anyone in PC building during that era knew about Abit. Not really niche for a technical audience, but definitely nostalgic in a way that won’t make sense to anyone who wasn’t into PCs during that era.
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.