Rather weird if true, but I can't really disagree with your observation. It seems like large parts of the web have disappeared in the last five to ten years.
Google do most likely index the sites, but their current algorithm just don't use them, because it as much a promotion algorithm at it is search.
Search for "github drv8830pico" - it's literally not in any results.
GitHub does fit the "huge website with lots of duplicate content" description very well.
Then again, Twitter seems to be doing fine. But I have a suspicion that they have some sort of agreement (and GitHub doesn't), because I have to regularly "report as spam" (note how that implies Google decides what's spam and what isn't) Twitter emails and they still pop up in the inbox after a while.
It might be anti-spam, but how is it this shit?
Ask HN: Has Google search become quantitatively worse? https://news.ycombinator.com › item 4 hours ago — But of course, it's still on GitHub. ... Search for "github drv8830pico" - it's literally not in any results.
DuckDuckGo works fine, though.
Maybe there's no links to it from other places, or somewhere on github thats crawled / indexed frequently enough.
Considering this comment thread is seemingly quickly indexed, just posting this link might be enough!
Man, ads really are the devil.