After being banned from eBay forever, I am making this gist to explain the cases where Nvidia is censoring people being mad about the scalper controversy.
(Certainty: 100%) The Nvidia Forums are being censored left and right. You see a post saying that Nvidia isn't doing their job, and you refresh and it's gone.
(Certainty: 50%) The Nvidia (unofficial) Discord is banning people that talk about the scalper issue.
(Certainty: 70%) Although it may not be related to Nvidia, eBay is banning accounts that fight back against the scalpers by making a huge bid and not paying for it. They also gave me a $5 coupon (that I can't use) after that just to add insult to injury.
The incidents here may be updated.