> but there was a very brief and small wave of articles perhaps a few years back claiming a lot of Indians in the US were still facing caste-based discrimination

Those articles based on a lawsuit were very heavily promoted on HN, however the complaint was by a single disgruntled employee who just happened to invoke the caste card and the suit was thrown out by the court.

The California DoJ failed to do basic due diligence before filing the lawsuit to the extent that the defendants filed a civil suit saying they were being discriminated against because of their race by the CA DoJ. Of course, these followups never got any traction on HN, because they didn't fit the narrative.

And now there are so many people, especially on HN and other developer forums that are utterly convinced caste based discrimination is very prevalent.