If I remember correct, it was google that had a “Black List” of people to suppress on YouTube. Youtube belongs to Google.
Whitelisting and blacklisting is fairly normal in digital security. This didn’t stand out as a bombshell. Ex: if the domain
PirateIslandMalware.net was found to have a high volume of illegal or harmful material, it might be blacklisted on some services.
That said, I think you might be referring to a story that was in connection with Zachary Vorhies, who was at the time a soon to be ex-Google employee that was let go after he repeatedly released internal confidential documents to external parties (Zach claims his termination was persecution). As it pertains to blacklist, Google maintains list sites and topics that those sights are found to not handle responsibly. When someone does a news search, they won’t find “news” from these sites on these topics.
The documents didn’t contain anything particularly condemning. Though it was presented as such. For example, Google had an internal initiative to get YouTube’s algorithm to stop automatically classifying anything that mentions LGBT as explicit (there was
a lawsuit for alleged anti-LGBTQ bias, but I never followed this case and don’t know it’s status). Or, their algorithm would treat African-American Vernacular English as toxic language. Zach saw attempts to address the algorithms classifications of these things as evidence of bias for them.
Zach doesn’t come across as particularly credible. In his post-Google life, he can usually be found promoting conspiracy. The most well known of which is his promotion of “Plandemic.” I hesitate to use the title here, since there have been recent episodes of people showing up in the forum to spam it with the conspiracy film.
That said, I actually view his Twitter feed from time to time. It can be bizarre in an interesting way from time to time.